This page lists observatories worldwide that contribute astrometric observations to the Minor Planet Center (MPC). These stations play a critical role in discovering and tracking asteroids, comets, and near-Earth objects.
| Code | Observatory | Region |
|---|---|---|
| 000 | Greenwich | England (UK) |
| 001 | Crowborough | England (UK) |
| 002 | Rayleigh | England (UK) |
| 003 | Montpellier | France |
| 004 | Toulouse | France |
| 005 | Meudon | France |
| 006 | Fabra Observatory, Barcelona | Spain |
| 007 | Paris | France |
| 008 | Algiers-Bouzareah | Algeria |
| 009 | Berne-Uecht | Switzerland |
| 010 | Caussols | France |
| 011 | Wetzikon | Switzerland |
| 012 | Uccle | Belgium |
| 013 | Leiden | Netherlands |
| 014 | Marseilles | France |
| 015 | Utrecht | Netherlands |
| 016 | Besancon | France |
| 017 | Hoher List | Germany |
| 018 | Dusseldorf-Bilk | Germany |
| 019 | Neuchatel | Switzerland |
| 020 | Nice | France |
| 021 | Karlsruhe | Germany |
| 022 | Pino Torinese | Italy |
| 023 | Wiesbaden | Germany |
| 024 | Heidelberg-Konigstuhl | Germany |
| 025 | Stuttgart | Germany |
| 026 | Berne-Zimmerwald | Switzerland |
| 027 | Milan | Italy |
| 028 | Wurzburg | Germany |
| 029 | Hamburg-Bergedorf | Germany |
| 030 | Arcetri Observatory, Florence | Italy |
| 031 | Sonneberg | Germany |
| 032 | Jena | Germany |
| 033 | Karl Schwarzschild Observatory, Tautenburg | Germany |
| 034 | Monte Mario Observatory, Rome | Italy |
| 035 | Copenhagen | Denmark |
| 036 | Castel Gandolfo | Italy |
| 037 | Collurania Observatory, Teramo | Italy |
| 038 | Trieste | Italy |
| 039 | Lund | Sweden |
| 040 | Lohrmann Institute, Dresden | Germany |
| 041 | Innsbruck | Austria |
| 042 | Potsdam | Germany |
| 043 | Asiago Astrophysical Observatory, Padua | Italy |
| 044 | Capodimonte Observatory, Naples | Italy |
| 045 | Vienna (since 1879) | Austria |
| 046 | Klet Observatory, Ceske Budejovice | Czech Republi |
| 047 | Poznan | Poland |
| 048 | Hradec Kralove | Czech Republi |
| 049 | Uppsala-Kvistaberg | Sweden |
| 050 | Stockholm (before 1931) | Sweden |
| 051 | Royal Observatory, Cape of Good Hope | South Africa |
| 052 | Stockholm-Saltsjobaden | Sweden |
| 053 | Konkoly Observatory, Budapest (since 1933) | Hungary |
| 054 | Brorfelde | Denmark |
| 055 | Cracow | Poland |
| 056 | Skalnate Pleso | Slovakia |
| 057 | Belgrade | Serbia |
| 058 | Kaliningrad | Russia |
| 059 | Lomnicky Stit | Slovakia |
| 060 | Warsaw-Ostrowik | Poland |
| 061 | Uzhhorod | Ukraine |
| 062 | Turku | Finland |
| 063 | Turku-Tuorla | Finland |
| 064 | Turku-Kevola | Finland |
| 065 | Traunstein | Germany |
| 066 | Athens | Greece |
| 067 | Lviv University Observatory | Ukraine |
| 068 | Lviv Polytechnic Institute | Ukraine |
| 069 | Baldone | Latvia |
| 070 | Vilnius (before 1939) | Lithuania |
| 071 | NAO Rozhen, Smolyan | Bulgaria |
| 072 | Scheuren Observatory | Germany |
| 073 | Bucharest | Romania |
| 074 | Boyden Observatory, Bloemfontein | South Africa |
| 075 | Tartu | Estonia |
| 076 | Johannesburg-Hartbeespoort | South Africa |
| 077 | Yale-Columbia Station, Johannesburg | South Africa |
| 078 | Johannesburg | South Africa |
| 079 | Radcliffe Observatory, Pretoria | South Africa |
| 080 | Istanbul | Turkey |
| 081 | Leiden Station, Johannesburg | South Africa |
| 082 | St. Polten | Austria |
| 083 | Holosiivskyi district-Kyiv | Ukraine |
| 084 | Pulkovo | Russia |
| 085 | Kyiv | Ukraine |
| 086 | Odesa | Ukraine |
| 087 | Helwan | Egypt |
| 088 | Kottomia | Egypt |
| 089 | Mykolaiv | Ukraine |
| 090 | Mainz | Germany |
| 091 | Observatoire de Nurol, Aurec sur Loire | France |
| 092 | Torun-Piwnice | Poland |
| 093 | Skibotn | Norway |
| 094 | Crimea-Simeiz | Ukraine |
| 095 | Crimea-Nauchnyi | Ukraine |
| 096 | Merate | Italy |
| 097 | Wise Observatory, Mitzpeh Ramon | Israel |
| 098 | Asiago Observatory, Cima Ekar, 182 cm Copernicus | Italy |
| 099 | Lahti | Finland |
| 100 | Ahtari | Finland |
| 101 | Kharkiv | Ukraine |
| 102 | Zvenigorod | Russia |
| 103 | Ljubljana | Slovenia |
| 104 | San Marcello Pistoiese | Italy |
| 105 | Moscow | Russia |
| 106 | Crni Vrh | Slovenia |
| 107 | Cavezzo | Italy |
| 108 | Montelupo | Italy |
| 109 | Algiers-Kouba | Algeria |
| 110 | Rostov | Russia |
| 111 | Piazzano Observatory, Florence | Italy |
| 112 | Pleiade Observatory, Verona | Italy |
| 113 | Volkssternwarte Drebach, Schoenbrunn | Germany |
| 114 | Engelhardt Observatory, Zelenchukskaya Station | Russia |
| 115 | Zelenchukskaya | Russia |
| 116 | Giesing | Germany |
| 117 | Sendling | Germany |
| 118 | Astronomical and Geophysical Observatory, Modra | Slovakia |
| 119 | Abastuman | Georgia |
| 120 | Visnjan | Croatia |
| 121 | Kharkiv University, Chuhuivskyi district Station | Ukraine |
| 122 | Pises Observatory | France |
| 123 | Byurakan | Armenia |
| 124 | Castres | France |
| 125 | Tbilisi | Georgia |
| 126 | Monte Viseggi L. Zannoni Observatory | Italy |
| 127 | Bornheim | Germany |
| 128 | Saratov | Russia |
| 129 | Ordubad | Azerbaijan |
| 130 | Lumezzane | Italy |
| 131 | Observatoire de l'Ardeche | France |
| 132 | Bedoin | France |
| 133 | Les Tardieux | France |
| 134 | Groszschwabhausen | Germany |
| 135 | Kasan | Russia |
| 136 | Engelhardt Observatory, Kasan | Russia |
| 137 | Givatayim Observatory | Israel |
| 138 | Village-Neuf | France |
| 139 | Antibes | France |
| 140 | Augerolles | France |
| 141 | Hottviller | France |
| 142 | Sinsen | Germany |
| 143 | Gnosca | Switzerland |
| 144 | Bray et Lu | France |
| 145 | 's-Gravenwezel | Belgium |
| 146 | Frignano | Italy |
| 147 | Osservatorio Astronomico di Suno | Italy |
| 148 | Guitalens | France |
| 149 | Beine-Nauroy | France |
| 150 | Maisons Laffitte | France |
| 151 | Eschenberg Observatory, Winterthur | Switzerland |
| 152 | Moletai Astronomical Observatory | Lithuania |
| 153 | Stuttgart-Hoffeld | Germany |
| 154 | Cortina | Italy |
| 155 | Ole Romer Observatory, Aarhus | Denmark |
| 156 | Catania Astrophysical Observatory | Italy |
| 157 | Frasso Sabino | Italy |
| 158 | Promiod | Italy |
| 159 | Monte Agliale | Italy |
| 160 | Castelmartini | Italy |
| 161 | Cerrina Tololo Observatory | Italy |
| 162 | Potenza | Italy |
| 163 | Roeser Observatory, Luxembourg | Luxembourg |
| 164 | St. Michel sur Meurthe | France |
| 165 | Piera Observatory, Barcelona | Spain |
| 166 | Upice | Czech Republi |
| 167 | Bulach Observatory | Switzerland |
| 168 | Kourovskaya | Russia |
| 169 | Airali Observatory | Italy |
| 170 | Observatorio de Begues | Spain |
| 171 | Flarestar Observatory, San Gwann | Malta |
| 172 | Onnens | Switzerland |
| 173 | St. Clotilde, Reunion | France (Reuni |
| 174 | Nyrola Observatory, Jyvaskyla | Finland |
| 175 | F.-X. Bagnoud Observatory, St-Luc | Switzerland |
| 176 | Observatorio Astronomico de Consell | Spain |
| 177 | Le Cres | France |
| 178 | Collonges | France |
| 179 | Monte Generoso | Switzerland |
| 180 | Mauguio | France |
| 181 | Observatoire des Makes, Saint-Louis | France (Reuni |
| 182 | St. Paul, Reunion | France (Reuni |
| 183 | Starlab Observatory, Karachay-Cherkessia | Russia |
| 184 | Valmeca Observatory, Puimichel | France |
| 185 | Observatoire Astronomique Jurassien-Vicques | Switzerland |
| 186 | Kitab | Uzbekistan |
| 187 | Astronomical Observatory, Borowiec | Poland |
| 188 | Maidanak | Uzbekistan |
| 189 | Geneva (before 1967) | Switzerland |
| 190 | Gissar | Tajikistan |
| 191 | Dushanbe | Tajikistan |
| 192 | Tashkent | Uzbekistan |
| 193 | Sanglok | Tajikistan |
| 194 | Tivoli | Namibia |
| 195 | Untermenzing Observatory, Munich | Germany |
| 196 | Homburg-Erbach | Germany |
| 197 | Bastia | Italy |
| 198 | Wildberg | Germany |
| 199 | Telescope Jean-Marc Salomon, Buthiers | France |
| 200 | Beersel Hills Observatory | Belgium |
| 201 | Jonathan B. Postel Observatory | Italy |
| 202 | Tamaris Observatoire, La Seyne sur Mer | France |
| 203 | GiaGa Observatory | Italy |
| 204 | Schiaparelli Observatory | Italy |
| 205 | Obs. Casalecchio di Reno, Bologna | Italy |
| 206 | Haagaar Observatory, Eina | Norway |
| 207 | Osservatorio Antonio Grosso | Italy |
| 208 | Rivalta | Italy |
| 209 | Asiago Observatory, Cima Ekar, 67/92 cm Schmidt | Italy |
| 210 | Alma-Ata | Kazakhstan |
| 211 | Scandicci | Italy |
| 212 | Observatorio La Dehesilla | Spain |
| 213 | Observatorio Montcabre | Spain |
| 214 | Garching Observatory | Germany |
| 215 | Buchloe | Germany |
| 216 | Observatoire des Cote de Meuse | France |
| 217 | Assah | Kazakhstan |
| 218 | Hyderabad | India |
| 219 | Japal-Rangapur | India |
| 220 | Vainu Bappu Observatory, Kavalur | India |
| 221 | IAS Observatory, Hakos | Namibia |
| 222 | Yerres-Canotiers | France |
| 223 | Madras | India |
| 224 | Ottmarsheim | France |
| 225 | Northwood Ridge Observatory | New Hampsh (US) |
| 226 | Guido Ruggieri Observatory, Padua | Italy |
| 227 | OrbitJet Observatory, Colden | New York (US) |
| 228 | Bruno Zugna Observatory, Trieste | Italy |
| 229 | G. C. Gloriosi Astronomical Observatory, Salerno | Italy |
| 230 | Mt. Wendelstein Observatory | Germany |
| 231 | Vesqueville | Belgium |
| 232 | Masquefa Observatory | Spain |
| 233 | Sauro Donati Astronomical Observatory, San Vito | Italy |
| 234 | Coddenham Observatory | England (UK) |
| 235 | CAST Observatory, Talmassons | Italy |
| 236 | Tomsk | Russia |
| 237 | Baugy | France |
| 238 | Grorudalen Optical Observatory | Norway |
| 239 | Trebur | Germany |
| 240 | Herrenberg Sternwarte | Germany |
| 241 | Schaerding | Austria |
| 242 | Varennes | France |
| 243 | Umbrella Observatory, Fredenbeck | Germany |
| 244 | Geocentric Occultation Observation | |
| 245 | Spitzer Space Telescope | |
| 246 | Klet Observatory-KLENOT | Czech Republi |
| 247 | Roving Observer | |
| 248 | Hipparcos | |
| 249 | SOHO | |
| 250 | Hubble Space Telescope | |
| 251 | Arecibo | Puerto Rico (US) |
| 252 | Goldstone DSS 13, Fort Irwin | California (US) |
| 253 | Goldstone DSS 14, Fort Irwin | California (US) |
| 254 | Haystack, Westford | Massachuse (US) |
| 255 | Yevpatoriya | Ukraine |
| 256 | Green Bank | West Virginia (US) |
| 257 | Goldstone DSS 25, Fort Irwin | California (US) |
| 258 | Gaia | |
| 259 | EISCAT Tromso UHF | Norway |
| 260 | Siding Spring Observatory-DSS | New South Wales (Australia) |
| 261 | Palomar Mountain-DSS | California (US) |
| 262 | European Southern Observatory, La Silla-DSS | Chile |
| 263 | Canberra DSS 35 | Australian Capital Territory (Australia) |
| 264 | Canberra DSS 36 | Australian Capital Territory (Australia) |
| 265 | Canberra DSS 43 | Australian Capital Territory (Australia) |
| 266 | New Horizons KBO Search-Subaru | Hawaii (US) |
| 267 | New Horizons KBO Search-CFHT | Hawaii (US) |
| 268 | Magellan-Clay Telescope | Chile |
| 269 | Magellan-Baade Telescope | Chile |
| 270 | Unistellar Network, Roving Observer | |
| 271 | ATCA, W196 reduction, DSS 47 | New South Wales (Australia) |
| 272 | Canberra DSS 34 | Australian Capital Territory (Australia) |
| 273 | Euclid | |
| 274 | James Webb Space Telescope | |
| 275 | Non-geocentric Occultation Observation | |
| 276 | Plonsk | Poland |
| 277 | Royal Observatory, Blackford Hill, Edinburgh | Scotland (UK) |
| 278 | Peking, Transit of Venus site | China |
| 279 | Seeberg Observatory, Gotha (1787-1857) | Germany |
| 280 | Lilienthal | Germany |
| 281 | Bologna | Italy |
| 282 | Nimes | France |
| 283 | Bremen | Germany |
| 284 | Driesen | Poland |
| 285 | Flammarion Observatory, Juvisy | France |
| 286 | Yunnan Observatory | China |
| 287 | Ceduna 30, UTAS | South Australia (Australia) |
| 288 | SPHEREx | |
| 289 | Nancy Grace Roman Space Telescope | |
| 290 | Mt. Graham-VATT | Arizona (US) |
| 291 | LPL/Spacewatch II | Arizona (US) |
| 292 | Burlington, New Jersey | New Jersey (US) |
| 293 | Burlington remote site | New Jersey (US) |
| 294 | Astrophysical Obs., College of Staten Island | New York (US) |
| 295 | Catholic University Observatory, Washington | District of Columbia (US) |
| 296 | Dudley Observatory, Albany (after 1893) | New York (US) |
| 297 | Middlebury | Vermont (US) |
| 298 | Van Vleck Observatory | Connecticu (US) |
| 299 | Bosscha Observatory, Lembang | Indonesia |
| 300 | Bisei Spaceguard Center-BATTeRS | Japan |
| 301 | Mont Megantic | Quebec (Canada) |
| 302 | University of the Andes station | Venezuela |
| 303 | OAN de Llano del Hato, Merida | Venezuela |
| 304 | Las Campanas Observatory | Chile |
| 305 | Purple Mountain, Hainan Island station | China |
| 306 | Observatorio Taya Beixo, Barquisimeto | Venezuela |
| 307 | Shattuck Observatory, Hanover | New Hampsh (US) |
| 308 | Usuda Deep Space Center, 64-m, Nagano | Japan |
| 309 | Cerro Paranal | Chile |
| 310 | Minor Planet Center Test Code | Massachuse (US) |
| 312 | Tsingtao field station, Xisha Islands | China |
| 318 | Quinns Rock | Western Australia (Australia) |
| 319 | Perth Observatory, Perth-Lowell Telescope | Western Australia (Australia) |
| 320 | Chiro Observatory | Western Australia (Australia) |
| 321 | Craigie | Western Australia (Australia) |
| 322 | Perth Observatory, Bickley-MCT | Western Australia (Australia) |
| 323 | Perth Observatory, Bickley | Western Australia (Australia) |
| 324 | Peking Observatory, Shaho Station | China |
| 327 | Peking Observatory, Xinglong Station | China |
| 330 | Purple Mountain Observatory, Nanking | China |
| 333 | Desert Eagle Observatory | Arizona (US) |
| 334 | Tsingtao | China |
| 336 | Lucy | |
| 337 | Sheshan | China |
| 338 | Psyche | |
| 339 | Trace Gas Orbiter | |
| 340 | Toyonaka | Japan |
| 341 | Akashina | Japan |
| 342 | Shishikui | Japan |
| 343 | Younchun | South Korea |
| 344 | Bohyunsan Optical Astronomy Observatory | South Korea |
| 345 | Sobaeksan Optical Astronomy Observatory | South Korea |
| 346 | KNUE Astronomical Observatory | South Korea |
| 347 | Utsunomiya-Imaizumi | Japan |
| 348 | Ayabe | Japan |
| 349 | Ageo | Japan |
| 350 | Kurohone | Japan |
| 351 | Sakamoto | Japan |
| 352 | Konan | Japan |
| 353 | Nishi Kobe | Japan |
| 354 | Kawachi | Japan |
| 355 | Hadano | Japan |
| 356 | Kogota | Japan |
| 357 | Shimotsuma | Japan |
| 358 | Nanyo | Japan |
| 359 | Wakayama | Japan |
| 360 | Kuma Kogen | Japan |
| 361 | Sumoto | Japan |
| 362 | Ray Observatory | Japan |
| 363 | Yamada | Japan |
| 364 | YCPM Kagoshima Station | Japan |
| 365 | Uto Observatory | Japan |
| 366 | Miyasaka Observatory | Japan |
| 367 | Yatsuka | Japan |
| 368 | Ochiai | Japan |
| 369 | Chichibu | Japan |
| 370 | Kochi | Japan |
| 371 | Tokyo-Okayama | Japan |
| 372 | Geisei | Japan |
| 373 | Oishi | Japan |
| 374 | Minami-Oda Observatory | Japan |
| 375 | Uzurano | Japan |
| 376 | Uenohara | Japan |
| 377 | Kwasan Observatory, Kyoto | Japan |
| 378 | Murou | Japan |
| 379 | Hamamatsu-Yuto | Japan |
| 380 | Ishiki | Japan |
| 381 | Tokyo-Kiso | Japan |
| 382 | Tokyo-Norikura | Japan |
| 383 | Chirorin | Japan |
| 384 | Shimada | Japan |
| 385 | Nihondaira Observatory | Japan |
| 386 | Yatsugatake-Kobuchizawa | Japan |
| 387 | Tokyo-Dodaira | Japan |
| 388 | Tokyo-Mitaka | Japan |
| 389 | Tokyo (before 1938) | Japan |
| 390 | Utsunomiya | Japan |
| 391 | Sendai Observatory, Ayashi Station | Japan |
| 392 | JCPM Sapporo Station | Japan |
| 393 | JCPM Sakura Station | Japan |
| 394 | JCPM Hamatonbetsu Station | Japan |
| 395 | Tokyo-Asahikawa | Japan |
| 396 | Asahikawa | Japan |
| 397 | Sapporo Science Center | Japan |
| 398 | Nagatoro | Japan |
| 399 | Kushiro | Japan |
| 400 | Kitami | Japan |
| 401 | Oosato | Japan |
| 402 | Dynic Astronomical Observatory | Japan |
| 403 | Kani | Japan |
| 404 | Yamamoto | Japan |
| 405 | Kamihoriguchi | Japan |
| 406 | Bibai | Japan |
| 407 | Kahoku | Japan |
| 408 | Nyukasa | Japan |
| 409 | Kiyose and Mizuho | Japan |
| 410 | Sengamine | Japan |
| 411 | Oizumi | Japan |
| 412 | Iwaki | Japan |
| 413 | Siding Spring Observatory | New South Wales (Australia) |
| 414 | Mount Stromlo | Australian Capital Territory (Australia) |
| 415 | Kambah | Australian Capital Territory (Australia) |
| 416 | Barton | Australian Capital Territory (Australia) |
| 417 | Yanagida Astronomical Observatory | Japan |
| 418 | Tamworth | New South Wales (Australia) |
| 419 | Windsor | New South Wales (Australia) |
| 420 | Sydney | New South Wales (Australia) |
| 421 | Mt. Kajigamori, Otoyo | Japan |
| 422 | Loomberah | New South Wales (Australia) |
| 423 | North Ryde | New South Wales (Australia) |
| 424 | Macquarie | Australian Capital Territory (Australia) |
| 425 | Taylor Range Observatory, Brisbane | Queensland (Australia) |
| 426 | Woomera | South Australia (Australia) |
| 427 | Stockport | South Australia (Australia) |
| 428 | Reedy Creek | Queensland (Australia) |
| 429 | Hawker | Australian Capital Territory (Australia) |
| 430 | Rainbow Observatory, near Coonabarabran | New South Wales (Australia) |
| 431 | Mt. Tarana Observatory, Bathurst | New South Wales (Australia) |
| 432 | Boambee | New South Wales (Australia) |
| 433 | Bagnall Beach Observatory | New South Wales (Australia) |
| 434 | S. Benedetto Po | Italy |
| 435 | G. Colombo Astronomical Observatory, Padua | Italy |
| 436 | Osservatorio di Livergnano | Italy |
| 437 | Haverford | Pennsylvan (US) |
| 438 | Smith College Observatory, Northampton | Massachuse (US) |
| 439 | ROTSE-III, Los Alamos | New Mexico (US) |
| 440 | Elginfield Observatory | Ontario (Canada) |
| 441 | Swilken Brae, St. Andrews | Scotland (UK) |
| 442 | Gualba Observatory | Spain |
| 443 | Obs. Astronomico Plomer, Buenos Aires | Argentina |
| 444 | Star Cruiser Observatory | California (US) |
| 445 | Observatorio d'Ontinyent | Spain |
| 446 | Kingsnake Observatory, Seguin | Texas (US) |
| 447 | Centennial Observatory | Colorado (US) |
| 448 | Desert Moon Observatory, Las Cruces | New Mexico (US) |
| 449 | Griffin Hunter Observatory, Bethune | South Carolina (US) |
| 450 | Carla Jane Observatory, Charlotte | North Carolina (US) |
| 451 | West Skies Observatory, Mulvane | Kansas (US) |
| 452 | Big Cypress Observatory, Fort Lauderdale | Florida (US) |
| 453 | Edwards Raven Observatory | California (US) |
| 454 | Maryland Space Grant Consortium Observatory | Maryland (US) |
| 455 | CBA Concord | California (US) |
| 456 | Daventry Observatory | England (UK) |
| 457 | Partizanske | Slovakia |
| 458 | Guadarrama Observatory | Spain |
| 459 | Smith River Observatory, Danbury | New Hampsh (US) |
| 460 | Area 52 Observatory, Nashville | Arkansas (US) |
| 461 | University of Szeged, Piszkesteto Stn. (Konkoly) | Hungary |
| 462 | Mount Belleview Observatory | Maryland (US) |
| 463 | Sommers-Bausch Observatory, Boulder | Colorado (US) |
| 464 | Toby Point Observatory, Narragansett | Rhode Island (US) |
| 465 | Takapuna | New Zealand |
| 466 | Mount Molehill Observatory, Auckland | New Zealand |
| 467 | Auckland Observatory | New Zealand |
| 468 | Astronomical Observatory, Campo Catino | Italy |
| 469 | Courroux | Switzerland |
| 470 | Ceccano | Italy |
| 471 | Houstrup | Denmark |
| 472 | Merlette | France |
| 473 | Remanzacco | Italy |
| 474 | Mount John Observatory, Lake Tekapo | New Zealand |
| 475 | Turin (before 1913) | Italy |
| 476 | Grange Observatory, Bussoleno | Italy |
| 477 | Galleywood | England (UK) |
| 478 | Lamalou-les-Bains | France |
| 479 | Sollies-Pont | France |
| 480 | Cockfield | England (UK) |
| 481 | Moorwarfen | Germany |
| 482 | St. Andrews | Scotland (UK) |
| 483 | Carter Observatory, Black Birch Station | New Zealand |
| 484 | Happy Valley, Wellington | New Zealand |
| 485 | Carter Observatory, Wellington | New Zealand |
| 486 | Palmerston North | New Zealand |
| 487 | Macnairston Observatory | Scotland (UK) |
| 488 | Newcastle-upon-Tyne | England (UK) |
| 489 | Hemingford Abbots | England (UK) |
| 490 | Wimborne Minster | England (UK) |
| 491 | Centro Astronomico de Yebes | Spain |
| 492 | Mickleover | England (UK) |
| 493 | Calar Alto | Spain |
| 494 | Stakenbridge | England (UK) |
| 495 | Altrincham | England (UK) |
| 496 | Bishopstoke | England (UK) |
| 497 | Loudwater | England (UK) |
| 498 | Earls Barton | England (UK) |
| 499 | Cheam | England (UK) |
| 500 | Geocentric | |
| 501 | Herstmonceux | England (UK) |
| 502 | Colchester | England (UK) |
| 503 | Cambridge | England (UK) |
| 504 | Le Creusot | France |
| 505 | Simon Stevin | Netherlands |
| 506 | Bendestorf | Germany |
| 507 | Nyenheim | Netherlands |
| 508 | Zeist | Netherlands |
| 509 | La Seyne sur Mer | France |
| 510 | Siegen | Germany |
| 511 | Haute Provence | France |
| 512 | Leiden (before 1860) | Netherlands |
| 513 | Lyons | France |
| 514 | Mundenheim (1907-1913) | Germany |
| 515 | Volkssternwarte Dhaun, near Kirn | Germany |
| 516 | Hamburg (before 1909) | Germany |
| 517 | Geneva (from 1967) | Switzerland |
| 518 | Marine Observatory, Hamburg | Germany |
| 519 | Meschede | Germany |
| 520 | Bonn | Germany |
| 521 | Remeis Observatory, Bamberg | Germany |
| 522 | Strasbourg | France |
| 523 | Frankfurt | Germany |
| 524 | Mannheim | Germany |
| 525 | Marburg | Germany |
| 526 | Kiel | Germany |
| 527 | Altona | Germany |
| 528 | Gottingen | Germany |
| 529 | Christiania | Norway |
| 530 | Lubeck | Germany |
| 531 | Collegio Romano, Rome | Italy |
| 532 | Munich | Germany |
| 533 | Padua | Italy |
| 534 | Leipzig (since 1861) | Germany |
| 535 | Palermo | Italy |
| 536 | Berlin-Babelsberg | Germany |
| 537 | Urania Observatory, Berlin | Germany |
| 538 | Pola | Croatia |
| 539 | Kremsmunster | Austria |
| 540 | Linz | Austria |
| 541 | Prague | Czech Republi |
| 542 | Falkensee | Germany |
| 543 | Leipzig (before 1861) | Germany |
| 544 | Wilhelm Foerster Observatory, Berlin | Germany |
| 545 | Vienna (before 1879) | Austria |
| 546 | Oppolzer Observatory, Vienna | Austria |
| 547 | Breslau | Poland |
| 548 | Berlin (1835-1913) | Germany |
| 549 | Uppsala | Sweden |
| 550 | Schwerin | Germany |
| 551 | Hurbanovo | Slovakia |
| 552 | Osservatorio S. Vittore, Bologna | Italy |
| 553 | Chorzow | Poland |
| 554 | Burgsolms Observatory, Wetzlar | Germany |
| 555 | Cracow-Fort Skala | Poland |
| 556 | Reintal, near Munich | Germany |
| 557 | Ondrejov | Czech Republi |
| 558 | Warsaw | Poland |
| 559 | Serra La Nave | Italy |
| 560 | Madonna di Dossobuono | Italy |
| 561 | Piszkesteto Stn. (Konkoly) | Hungary |
| 562 | Figl Observatory, Vienna | Austria |
| 563 | Seewalchen | Austria |
| 564 | Herrsching | Germany |
| 565 | Bassano Bresciano | Italy |
| 566 | Haleakala-NEAT/GEODSS | Hawaii (US) |
| 567 | Chions | Italy |
| 568 | Maunakea | Hawaii (US) |
| 569 | Helsinki | Finland |
| 570 | Vilnius (since 1939) | Lithuania |
| 571 | Cavriana | Italy |
| 572 | Cologne | Germany |
| 573 | Eldagsen | Germany |
| 574 | Gottolengo | Italy |
| 575 | La Chaux de Fonds | Switzerland |
| 576 | Burwash | England (UK) |
| 577 | Metzerlen Observatory | Switzerland |
| 578 | Linden Observatory | South Africa |
| 579 | Novi Ligure | Italy |
| 580 | Graz | Austria |
| 581 | Sedgefield | South Africa |
| 582 | Orwell Park | England (UK) |
| 583 | Odesa-Mayaky | Ukraine |
| 584 | Leningrad | Russia |
| 585 | Kyiv comet station | Ukraine |
| 586 | Pic du Midi | France |
| 587 | Sormano | Italy |
| 588 | Eremo di Tizzano | Italy |
| 589 | Santa Lucia Stroncone | Italy |
| 590 | Metzerlen | Switzerland |
| 591 | Resse Observatory | Germany |
| 592 | Solingen | Germany |
| 593 | Monte Argentario | Italy |
| 594 | Monte Autore | Italy |
| 595 | Farra d'Isonzo | Italy |
| 596 | Colleverde di Guidonia | Italy |
| 597 | Springe | Germany |
| 598 | Loiano | Italy |
| 599 | Campo Imperatore-CINEOS | Italy |
| 600 | TLC Observatory, Bologna | Italy |
| 601 | Engelhardt Observatory, Dresden | Germany |
| 602 | Urania Observatory, Vienna | Austria |
| 603 | Bothkamp | Germany |
| 604 | Archenhold Sternwarte, Berlin-Treptow | Germany |
| 605 | Marl | Germany |
| 606 | Norderstedt | Germany |
| 607 | Hagen Observatory, Ronkhausen | Germany |
| 608 | Haleakala-AMOS | Hawaii (US) |
| 609 | Osservatorio Polino | Italy |
| 610 | Pianoro | Italy |
| 611 | Starkenburg Sternwarte, Heppenheim | Germany |
| 612 | Lenkerbeck | Germany |
| 613 | Heisingen | Germany |
| 614 | Soisy-sur-Seine | France |
| 615 | St. Veran | France |
| 616 | Brno | Czech Republi |
| 617 | Arbonne la Foret | France |
| 618 | Martigues | France |
| 619 | Sabadell | Spain |
| 620 | Observatorio Astronomico de Mallorca | Spain |
| 621 | Bergisch Gladbach | Germany |
| 622 | Oberwichtrach | Switzerland |
| 623 | Liege | Belgium |
| 624 | Dertingen | Germany |
| 625 | Kihei-AMOS Remote Maui Experimental Site | Hawaii (US) |
| 626 | Geel | Belgium |
| 627 | Blauvac | France |
| 628 | Mulheim-Ruhr | Germany |
| 629 | Szeged Observatory | Hungary |
| 630 | Osenbach | France |
| 631 | Hamburg-Georgswerder | Germany |
| 632 | San Polo A Mosciano | Italy |
| 633 | Romito | Italy |
| 634 | Crolles | France |
| 635 | Pergignan | France |
| 636 | Essen | Germany |
| 637 | Hamburg-Himmelsmoor | Germany |
| 638 | Detmold | Germany |
| 639 | Dresden | Germany |
| 640 | Senftenberger Sternwarte | Czech Republi |
| 641 | Overberg | South Africa |
| 642 | Oak Bay, Victoria | British Columbia (Canada) |
| 643 | OCA-Anza Observatory | California (US) |
| 644 | Palomar Mountain/NEAT | California (US) |
| 645 | Apache Point-Sloan Digital Sky Survey | New Mexico (US) |
| 646 | Santana Observatory, Rancho Cucamonga | California (US) |
| 647 | Stone Finder Observatory, Calgary | Alberta (Canada) |
| 648 | Winer Observatory, Sonoita | Arizona (US) |
| 649 | Powell Observatory, Louisburg | Kansas (US) |
| 650 | Temecula | California (US) |
| 651 | Grasslands Observatory, Tucson | Arizona (US) |
| 652 | Rock Finder Observatory, Calgary | Alberta (Canada) |
| 653 | Torus Observatory, Buckley | Washington (US) |
| 654 | Table Mountain Observatory, Wrightwood-PHMC | California (US) |
| 655 | Sooke | British Columbia (Canada) |
| 656 | Victoria | British Columbia (Canada) |
| 657 | Climenhaga Observatory, Victoria | British Columbia (Canada) |
| 658 | Dominion Astrophysical Observatory | British Columbia (Canada) |
| 659 | Heron Cove Observatory, Orcas | Washington (US) |
| 660 | Leuschner Observatory, Berkeley | California (US) |
| 661 | Rothney Astrophysical Observatory, Priddis | Alberta (Canada) |
| 662 | Lick Observatory, Mount Hamilton | California (US) |
| 663 | Red Mountain Observatory | Arizona (US) |
| 664 | Manastash Ridge Observatory | Washington (US) |
| 665 | Wallis Observatory | California (US) |
| 666 | Moorpark College Observatory | California (US) |
| 667 | Wanapum Dam | Washington (US) |
| 668 | San Emigdio Peak | California (US) |
| 669 | Ojai | California (US) |
| 670 | Camarillo | California (US) |
| 671 | Stony Ridge | California (US) |
| 672 | Mount Wilson | California (US) |
| 673 | Table Mountain Observatory, Wrightwood | California (US) |
| 674 | Ford Observatory, Wrightwood | California (US) |
| 675 | Palomar Mountain | California (US) |
| 676 | San Clemente | California (US) |
| 677 | Lake Arrowhead | California (US) |
| 678 | Fountain Hills | Arizona (US) |
| 679 | San Pedro Martir | Mexico |
| 680 | Los Angeles | California (US) |
| 681 | Calgary | Alberta (Canada) |
| 682 | Kanab | Utah (US) |
| 683 | Goodricke-Pigott Observatory, Tucson | Arizona (US) |
| 684 | Prescott | Arizona (US) |
| 685 | Williams | Arizona (US) |
| 686 | U. of Minn. Infrared Obs., Mt. Lemmon | Arizona (US) |
| 687 | Northern Arizona University, Flagstaff | Arizona (US) |
| 688 | Lowell Observatory, Anderson Mesa Station | Arizona (US) |
| 689 | U.S. Naval Observatory, Flagstaff | Arizona (US) |
| 690 | Lowell Observatory, Flagstaff | Arizona (US) |
| 691 | Steward Observatory, Kitt Peak-Spacewatch | Arizona (US) |
| 692 | Steward Observatory, Tucson | Arizona (US) |
| 693 | Catalina Station, Tucson | Arizona (US) |
| 694 | Tumamoc Hill, Tucson | Arizona (US) |
| 695 | Kitt Peak | Arizona (US) |
| 696 | Whipple Observatory, Mt. Hopkins | Arizona (US) |
| 697 | Kitt Peak, McGraw-Hill | Arizona (US) |
| 698 | Mt. Bigelow | Arizona (US) |
| 699 | Lowell Observatory-LONEOS | Arizona (US) |
| 700 | Chinle | Arizona (US) |
| 701 | Junk Bond Observatory, Sierra Vista | Arizona (US) |
| 702 | Joint Obs. for cometary research, Socorro | New Mexico (US) |
| 703 | Catalina Sky Survey | Arizona (US) |
| 704 | Lincoln Laboratory ETS, New Mexico | New Mexico (US) |
| 705 | Apache Point | New Mexico (US) |
| 706 | Salida | Colorado (US) |
| 707 | Chamberlin field station | Colorado (US) |
| 708 | Chamberlin Observatory, Denver | Colorado (US) |
| 709 | W & B Observatory, Cloudcroft | New Mexico (US) |
| 710 | MPO Observatory, Florissant | Colorado (US) |
| 711 | McDonald Observatory, Fort Davis | Texas (US) |
| 712 | USAF Academy Observatory, Colorado Springs | Colorado (US) |
| 713 | Thornton | Colorado (US) |
| 714 | Bagdad | Arizona (US) |
| 715 | Jornada Observatory, Las Cruces | New Mexico (US) |
| 716 | Palmer Divide Observatory, Colorado Springs | Colorado (US) |
| 717 | Prude Ranch | Texas (US) |
| 718 | Tooele | Utah (US) |
| 719 | Etscorn Observatory | New Mexico (US) |
| 720 | Universidad de Monterrey | Mexico |
| 721 | Lime Creek | Nebraska (US) |
| 722 | Missouri City | Texas (US) |
| 723 | Cottonwood Observatory, Ada | Oklahoma (US) |
| 724 | National Observatory, Tacubaya | Mexico |
| 725 | Fair Oaks Ranch | Texas (US) |
| 726 | Brainerd | Minnesota (US) |
| 727 | Zeno Observatory, Edmond | Oklahoma (US) |
| 728 | Corpus Christi | Texas (US) |
| 729 | Glenlea Astronomical Observatory, Winnipeg | Saskatchewan |
| 730 | University of North Dakota, Grand Forks | North Dako (US) |
| 731 | Rose-Hulman Observatory, Terre Haute | Indiana (US) |
| 732 | Oaxaca | Mexico |
| 733 | Allen, Texas | Texas (US) |
| 734 | Farpoint Observatory, Eskridge | Kansas (US) |
| 735 | George Observatory, Needville | Texas (US) |
| 736 | Houston | Texas (US) |
| 737 | New Bullpen Observatory, Alpharetta | Georgia (US) |
| 738 | Observatory of the State University of Missouri | Missouri (US) |
| 739 | Sunflower Observatory, Olathe | Kansas (US) |
| 740 | SFA Observatory, Nacogdoches | Texas (US) |
| 741 | Goodsell Observatory, Northfield | Minnesota (US) |
| 742 | Drake University, Des Moines | Iowa (US) |
| 743 | University of Minnesota, Minneapolis | Wisconsin (US) |
| 744 | Doyan Rose Observatory, Indianapolis | Indiana (US) |
| 745 | Morrison Obervatory, Glasgow | Missouri (US) |
| 746 | Brooks Observatory, Mt. Pleasant | Michigan (US) |
| 747 | Highland Road Park Observatory | Louisiana (US) |
| 748 | Van Allen Observatory, Iowa City | Iowa (US) |
| 749 | Oakwood | Georgia (US) |
| 750 | Hobbs Observatory, Fall Creek | Wisconsin (US) |
| 751 | Lake Saint Louis | Missouri (US) |
| 752 | Puckett Observatory, Mountain Town | Georgia (US) |
| 753 | Washburn Observatory, Madison | Wisconsin (US) |
| 754 | Yerkes Observatory, Williams Bay | Wisconsin (US) |
| 755 | Optec Observatory | Michigan (US) |
| 756 | Dearborn Observatory, Evanston (bef. July 1939) | Illinois (US) |
| 757 | High Point | North Carolina (US) |
| 758 | BCC Observatory, Cocoa | Florida (US) |
| 759 | Nashville | Tennessee (US) |
| 760 | Goethe Link Observatory, Brooklyn | Indiana (US) |
| 761 | Zephyrhills | Florida (US) |
| 762 | Four Winds Observatory, Lake Leelanau | Michigan (US) |
| 763 | King City | Ontario (Canada) |
| 764 | Puckett Observatory, Stone Mountain | Georgia (US) |
| 765 | Cincinnati | Ohio (US) |
| 766 | Michigan State University Obs., East Lansing | Michigan (US) |
| 767 | Ann Arbor | Michigan (US) |
| 768 | Dearborn Observatory, Evanston (aft. Oct. 1939) | Illinois (US) |
| 769 | McMillin Observatory, Columbus | Ohio (US) |
| 770 | Crescent Moon Observatory, Columbus | Indiana (US) |
| 771 | Boyeros Observatory, Havana | Cuba |
| 772 | Boltwood Observatory, Stittsville | Ontario (Canada) |
| 773 | Warner and Swasey Observatory, Cleveland | Ohio (US) |
| 774 | Warner and Swasey Nassau Station, Chardon | Ohio (US) |
| 775 | Sayre Observatory, South Bethlehem | Pennsylvan (US) |
| 776 | Foggy Bottom, Hamilton | New York (US) |
| 777 | Toronto | Ontario (Canada) |
| 778 | Allegheny Observatory, Pittsburgh | Pennsylvan (US) |
| 779 | David Dunlap Observatory, Richmond Hill | Ontario (Canada) |
| 780 | Leander McCormick Observatory, Charlottesville | Virginia (US) |
| 781 | Quito | Ecuador |
| 782 | Quito, comet astrograph station | Ecuador |
| 783 | Rixeyville | Virginia (US) |
| 784 | Stull Observatory, Alfred University | New York (US) |
| 785 | Fitz-Randolph Observatory, Princeton | New Jersey (US) |
| 786 | U.S. Naval Obs., Washington (since 1893) | District of Columbia (US) |
| 787 | U.S. Naval Obs., Washington (before 1893) | District of Columbia (US) |
| 788 | Mount Cuba Observatory, Wilmington | Delaware (US) |
| 789 | Litchfield Observatory, Clinton | New York (US) |
| 790 | Dominion Observatory, Ottawa | Ontario (Canada) |
| 791 | Flower and Cook Observatory, Philadelphia | Pennsylvan (US) |
| 792 | University of Rhode Island, Quonochontaug | Rhode Island (US) |
| 793 | Dudley Observatory, Albany (before 1893) | New York (US) |
| 794 | Vassar College Observatory, Poughkeepsie | New York (US) |
| 795 | Rutherford | New York (US) |
| 796 | Stamford | Connecticu (US) |
| 797 | Yale Observatory, New Haven | Connecticu (US) |
| 798 | Yale Observatory, Bethany | Connecticu (US) |
| 799 | Winchester | Massachuse (US) |
| 800 | Harvard Observatory, Arequipa | Peru |
| 801 | Oak Ridge Observatory | Massachuse (US) |
| 802 | Harvard Observatory, Cambridge | Massachuse (US) |
| 803 | Taunton | Massachuse (US) |
| 804 | Santiago-San Bernardo | Chile |
| 805 | Santiago-Cerro El Roble | Chile |
| 806 | Santiago-Cerro Calan | Chile |
| 807 | Cerro Tololo Observatory, La Serena | Chile |
| 808 | El Leoncito | Argentina |
| 809 | European Southern Observatory, La Silla | Chile |
| 810 | Wallace Observatory, Westford | Massachuse (US) |
| 811 | Maria Mitchell Observatory, Nantucket | Massachuse (US) |
| 812 | Vina del Mar | Chile |
| 813 | Santiago-Quinta Normal (1862-1920) | Chile |
| 814 | North Scituate | Rhode Island (US) |
| 815 | Santiago-Santa Lucia (1849-1861) | Chile |
| 816 | Rand Observatory | New York (US) |
| 817 | Sudbury | Massachuse (US) |
| 818 | Gemeaux Observatory, Laval | Quebec (Canada) |
| 819 | Val-des-Bois | Quebec (Canada) |
| 820 | Tarija | Bolivia |
| 821 | Cordoba-Bosque Alegre | Argentina |
| 822 | Cordoba | Argentina |
| 823 | Fitchburg | Massachuse (US) |
| 824 | Lake Clear | New York (US) |
| 825 | Granville | Massachuse (US) |
| 826 | Plessissville | Quebec (Canada) |
| 827 | Saint-Felicien | Quebec (Canada) |
| 828 | Assonet | Massachuse (US) |
| 829 | Complejo Astronomico El Leoncito | Argentina |
| 830 | Hudson | New Hampsh (US) |
| 831 | Rosemary Hill Observatory, University of Florida | Florida (US) |
| 832 | Etters | Pennsylvan (US) |
| 833 | Obs. Astronomico de Mercedes, Buenos Aires | Argentina |
| 834 | Buenos Aires-AAAA | Argentina |
| 835 | Drum Hill Station, Chelmsford | Massachuse (US) |
| 836 | Furnace Brook Observatory, Cranston | Rhode Island (US) |
| 837 | Jupiter | Florida (US) |
| 838 | Dayton | Ohio (US) |
| 839 | La Plata | Argentina |
| 840 | Flint | Michigan (US) |
| 841 | Martin Observatory, Blacksburg | Virginia (US) |
| 842 | Gettysburg College Observatory | Pennsylvan (US) |
| 843 | Emerald Lane Observatory, Decatur | Alabama (US) |
| 844 | Observatorio Astronomico Los Molinos | Uruguay |
| 845 | Ford Observatory, Ithaca | New York (US) |
| 846 | Principia Astronomical Observatory, Elsah | Missouri (US) |
| 847 | Lunar Cafe Observator, Flint | Michigan (US) |
| 848 | Tenagra Observatory, Cottage Grove | Oregon (US) |
| 849 | Everstar Observatory, Olathe | Kansas (US) |
| 850 | Cordell-Lorenz Observatory, Sewanee | Tennessee (US) |
| 851 | Burke-Gaffney Observatory, Halifax | Nova Scotia (Canada) |
| 852 | River Moss Observatory, St. Peters | Missouri (US) |
| 853 | Biosphere 2 Observatory | Arizona (US) |
| 854 | Sabino Canyon Observatory, Tucson | Arizona (US) |
| 855 | Wayside Observatory, Minnetonka | Minnesota (US) |
| 856 | Riverside | California (US) |
| 857 | Iowa Robotic Observatory, Sonoita | Arizona (US) |
| 858 | Tebbutt Observatory, Edgewood | New Mexico (US) |
| 859 | Wykrota Observatory-CEAMIG | Brazil |
| 860 | Valinhos | Brazil |
| 861 | Barao Geraldo | Brazil |
| 862 | Saku | Japan |
| 863 | Furukawa | Japan |
| 864 | Kumamoto | Japan |
| 865 | Emmy Observatory, New Paltz | New York (US) |
| 866 | U.S. Naval Academy, Michelson | Maryland (US) |
| 867 | Saji Observatory | Japan |
| 868 | Hidaka Observatory | Japan |
| 869 | Tosa | Japan |
| 870 | Campinas | Brazil |
| 871 | Akou | Japan |
| 872 | Tokushima | Japan |
| 873 | Kurashiki Observatory | Japan |
| 874 | Observatorio do Pico dos Dias, Itajuba | Brazil |
| 875 | Yorii | Japan |
| 876 | Honjo | Japan |
| 877 | Okutama | Japan |
| 878 | Kagiya | Japan |
| 879 | Tokai | Japan |
| 880 | Rio de Janeiro | Brazil |
| 881 | Toyota | Japan |
| 882 | JCPM Oi Station | Japan |
| 883 | Shizuoka | Japan |
| 884 | Kawane | Japan |
| 885 | JCPM Yakiimo Station | Japan |
| 886 | Mishima | Japan |
| 887 | Ojima | Japan |
| 888 | Gekko | Japan |
| 889 | Karasuyama | Japan |
| 890 | JCPM Tone Station | Japan |
| 891 | JCPM Kimachi Station | Japan |
| 892 | YGCO Hoshikawa and Nagano Stations | Japan |
| 893 | Sendai Municipal Observatory | Japan |
| 894 | Kiyosato | Japan |
| 895 | Hatamae | Japan |
| 896 | Yatsugatake South Base Observatory | Japan |
| 897 | YGCO Chiyoda Station | Japan |
| 898 | Fujieda | Japan |
| 899 | Toma | Japan |
| 900 | Moriyama | Japan |
| 901 | Tajimi | Japan |
| 902 | Ootake | Japan |
| 903 | Fukuchiyama and Kannabe | Japan |
| 904 | Go-Chome and Kobe-Suma | Japan |
| 905 | Nachi-Katsuura Observatory | Japan |
| 906 | Cobram | Victoria (Australia) |
| 907 | Melbourne | Victoria (Australia) |
| 908 | Toyama | Japan |
| 909 | Snohomish Hilltop Observatory | Washington (US) |
| 910 | Caussols-ODAS | France |
| 911 | Collins Observatory, Corning Community College | New York (US) |
| 912 | Carbuncle Hill Observatory, Greene | Rhode Island (US) |
| 913 | Observatorio Kappa Crucis, Montevideo | Uruguay |
| 914 | Underwood Observatory, Hubbardston | Massachuse (US) |
| 915 | River Oaks Observatory, New Braunfels | Texas (US) |
| 916 | Oakley Observatory, Terre Haute | Indiana (US) |
| 917 | Pacific Lutheran University Keck Observatory | Washington (US) |
| 918 | Badlands Observatory, Quinn | South Dakota (US) |
| 919 | Desert Beaver Observatory | Arizona (US) |
| 920 | RIT Observatory, Rochester | New York (US) |
| 921 | SW Institute for Space Research, Cloudcroft | New Mexico (US) |
| 922 | Timberland Observatory, Decatur | Alabama (US) |
| 923 | The Bradstreet Observatory, St. Davids | Pennsylvan (US) |
| 924 | Observatoire du Cegep de Trois-Rivieres | Quebec (Canada) |
| 925 | Palominas Observatory | Arizona (US) |
| 926 | Tenagra II Observatory, Nogales | Arizona (US) |
| 927 | Madison-YRS | Wisconsin (US) |
| 928 | Moonedge Observatory, Northport | New York (US) |
| 929 | Port Allen | Louisiana (US) |
| 930 | S. S. Observatory, Pamatai | Tahiti |
| 931 | Puna'auia | Tahiti |
| 932 | John J. McCarthy Obs., New Milford | Connecticu (US) |
| 933 | Rockland Observatory, Sierra Vista | Arizona (US) |
| 934 | Poway Valley | California (US) |
| 935 | Wyrick Observatory, Haymarket | Virginia (US) |
| 936 | Ibis Observatory, Manhattan | Kansas (US) |
| 937 | Bradbury Observatory, Stockton-on-Tees | England (UK) |
| 938 | Linhaceira | Portugal |
| 939 | Observatorio Rodeno | Spain |
| 940 | Waterlooville | England (UK) |
| 941 | Observatorio Pla D'Arguines | Spain |
| 942 | Grantham | England (UK) |
| 943 | Peverell | England (UK) |
| 944 | Observatorio Geminis, Dos Hermanas | Spain |
| 945 | Observatorio Monte Deva | Spain |
| 946 | Ametlla de Mar | Spain |
| 947 | Saint-Sulpice | France |
| 948 | Pymoor | England (UK) |
| 949 | Durtal | France |
| 950 | La Palma | Canary Island |
| 951 | Highworth | England (UK) |
| 952 | Marxuquera | Spain |
| 953 | Montjoia | Spain |
| 954 | Teide Observatory | Canary Island |
| 955 | Sassoeiros | Portugal |
| 956 | Observatorio Pozuelo | Spain |
| 957 | Merignac | France |
| 958 | Observatoire de Dax | France |
| 959 | Ramonville Saint Agne | France |
| 960 | Rolvenden | England (UK) |
| 961 | City Observatory, Calton Hill, Edinburgh | Scotland (UK) |
| 962 | Gandia | Spain |
| 963 | Werrington | England (UK) |
| 964 | Southend Bradfield | England (UK) |
| 965 | Observacao Astronomica no Algarve, Portimao | Portugal |
| 966 | Church Stretton | England (UK) |
| 967 | Greens Norton | England (UK) |
| 968 | Haverhill | England (UK) |
| 969 | London-Regents Park | England (UK) |
| 970 | Chelmsford | England (UK) |
| 971 | Lisbon | Portugal |
| 972 | Dun Echt | Scotland (UK) |
| 973 | Harrow | England (UK) |
| 974 | Genoa Observatory | Italy |
| 975 | Observatorio Astronomico de Valencia | Spain |
| 976 | Leamington Spa | England (UK) |
| 977 | Markree | Ireland |
| 978 | Conder Brow | England (UK) |
| 979 | South Wonston | England (UK) |
| 980 | Lancaster | England (UK) |
| 981 | Armagh | NIreland (UK) |
| 982 | Dunsink Observatory, Dublin | Ireland |
| 983 | San Fernando | Spain |
| 984 | Eastfield | England (UK) |
| 985 | Telford | England (UK) |
| 986 | Ascot | England (UK) |
| 987 | Isle of Man Observatory, Foxdale | Isle of Man (UK) |
| 988 | Glasgow | Scotland (UK) |
| 989 | Wilfred Hall Observatory, Preston | England (UK) |
| 990 | Madrid | Spain |
| 991 | Liverpool (since 1867) | England (UK) |
| 992 | Liverpool (before 1867) | England (UK) |
| 993 | Woolston Observatory | England (UK) |
| 994 | Godalming | England (UK) |
| 995 | Durham | England (UK) |
| 996 | Oxford | England (UK) |
| 997 | Hartwell | England (UK) |
| 998 | London-Mill Hill | England (UK) |
| 999 | Bordeaux-Floirac | France |
| A00 | Gravesend | England (UK) |
| A01 | Masia Cal Maciarol Modul 2 | Spain |
| A02 | Masia Cal Maciarol Modul 8 | Spain |
| A03 | Torredembarra | Spain |
| A04 | Saint-Caprais | France |
| A05 | Belesta | France |
| A06 | Mataro | Spain |
| A07 | Gretz-Armainvilliers | France |
| A08 | Malibert | France |
| A09 | Quincampoix | France |
| A10 | Observatorio Astronomico de Corbera | Spain |
| A11 | Wormhout | France |
| A12 | Stazione Astronomica di Sozzago | Italy |
| A13 | Observatoire Naef, Ependes | Switzerland |
| A14 | Les Engarouines Observatory | France |
| A15 | Josef Bresser Sternwarte, Borken | Germany |
| A16 | Tentlingen | Switzerland |
| A17 | Guidestar Observatory, Weinheim | Germany |
| A18 | Herne | Germany |
| A19 | Koln | Germany |
| A20 | Sogel | Germany |
| A21 | Irmtraut | Germany |
| A22 | Starkenburg Sternwarte-SOHAS | Germany |
| A23 | Weinheim | Germany |
| A24 | New Millennium Observatory, Mozzate | Italy |
| A25 | Nova Milanese | Italy |
| A26 | Darmstadt | Germany |
| A27 | Eridanus Observatory, Langelsheim | Germany |
| A28 | Kempten | Germany |
| A29 | Santa Maria a Monte | Italy |
| A30 | Crespadoro | Italy |
| A31 | Corcaroli Observatory | Italy |
| A32 | Panker | Germany |
| A33 | Volkssternwarte Kirchheim | Germany |
| A34 | Grosshabersdorf | Germany |
| A35 | Hormersdorf Observatory | Germany |
| A36 | Ganda di Aviatico | Italy |
| A37 | Mueggelheim | Germany |
| A38 | Campocatino Automated Telescope, Collepardo | Italy |
| A39 | Altenburg | Germany |
| A40 | Pieta | Malta |
| A41 | Rezman Observatory, Kamnik | Slovenia |
| A42 | Gehrden | Germany |
| A43 | Inastars Observatory, Potsdam (before 2006) | Germany |
| A44 | Altschwendt | Austria |
| A45 | Karrenkneul | Germany |
| A46 | Lelekovice | Czech Republi |
| A47 | Matera | Italy |
| A48 | Povegliano Veronese | Italy |
| A49 | Uppsala-Angstrom | Sweden |
| A50 | Andrushivka Astronomical Observatory | Ukraine |
| A51 | Danzig | Poland |
| A52 | Etyek | Hungary |
| A53 | Peschiera del Garda | Italy |
| A54 | Ostrorog | Poland |
| A55 | Osservatorio Astronomico Vallemare di Borbona | Italy |
| A56 | Parma | Italy |
| A57 | Osservatorio Astron. Margherita Hack, Firenze | Italy |
| A58 | Observatoire de Chalandray-Canotiers | France |
| A59 | Karlovy Vary Observatory | Czech Republi |
| A60 | YSTAR-NEOPAT Station, Sutherland | South Africa |
| A61 | Tortona | Italy |
| A62 | Aichtal | Germany |
| A63 | Cosmosoz Obs., Tassin la Demi Lune | France |
| A64 | Couvaloup de St-Cergue | Switzerland |
| A65 | Le Couvent de Lentin | France |
| A66 | Stazione Osservativa Astronomica, Livorno | Italy |
| A67 | Chiusa di Pesio | Italy |
| A68 | Swedenborg Obs., Bockholmwik | Germany |
| A69 | Osservatorio Palazzo Bindi Sergardi | Italy |
| A70 | Lumijoki | Finland |
| A71 | Stixendorf | Austria |
| A72 | Radebeul Observatory | Germany |
| A73 | Penzing Astrometric Obs., Vienna | Austria |
| A74 | Bergen-Enkheim Observatory | Germany |
| A75 | Fort Pius Observatory, Barcelona | Spain |
| A76 | Andromeda Observatory, Miskolc | Hungary |
| A77 | Observatoire Chante-Perdrix, Dauban | France |
| A78 | Stia | Italy |
| A79 | Zvezdno Obshtestvo Observatory, Plana | Bulgaria |
| A80 | Lindenberg Observatory | Germany |
| A81 | Balzaretto Observatory, Rome | Italy |
| A82 | Osservatorio Astronomico di Trieste | Italy |
| A83 | Jakokoski Observatory | Finland |
| A84 | TUBITAK National Observatory | Turkey |
| A85 | Odesa Astronomical Observatory, Kryzhanovka | Ukraine |
| A86 | Albigneux | France |
| A87 | Rimbach | Germany |
| A88 | Bolzaneto | Italy |
| A89 | Sterni Observatory, Kempten | Germany |
| A90 | Sant Gervasi Observatory, Barcelona | Spain |
| A91 | Hankasalmi Observatory | Finland |
| A92 | Urseanu Observatory, Bucharest | Romania |
| A93 | Lucca | Italy |
| A94 | Cormons | Italy |
| A95 | Taurus Hill Observatory, Varkaus | Finland |
| A96 | Klosterneuburg | Austria |
| A97 | Stammersdorf | Austria |
| A98 | Observatory Mazzarot-1, Baran' | Belarus |
| A99 | Osservatorio del Monte Baldo | Italy |
| B00 | Savigny-le-Temple | France |
| B01 | Taunus Observatory, Frankfurt | Germany |
| B02 | Kielce | Poland |
| B03 | Alter Satzberg, Vienna | Austria |
| B04 | OAVdA, Saint-Barthelemy | Italy |
| B05 | Ka-Dar Observatory, Barybino | Russia |
| B06 | Montseny Astronomical Observatory | Spain |
| B07 | Camorino | Switzerland |
| B08 | San Lazzaro di Savena | Italy |
| B09 | Capannoli | Italy |
| B10 | Observatoire des Baronnies Provencales, Moydans | France |
| B11 | Osservatorio Cima Rest, Magasa | Italy |
| B12 | Koschny Observatory, Noordwijkerhout | Netherlands |
| B13 | Osservatorio di Tradate | Italy |
| B14 | Ca del Monte | Italy |
| B15 | Inastars Observatory, Potsdam (since 2006) | Germany |
| B16 | 1st Moscow Gymnasium Observatory, Lipki | Russia |
| B17 | AZT-8 Yevpatoriya | Ukraine |
| B18 | Terskol | Russia |
| B19 | Observatorio Iluro, Mataro | Spain |
| B20 | Observatorio Carmelita, Tiana | Spain |
| B21 | Gaisberg Observatory, Schaerding | Austria |
| B22 | Observatorio d'Ager | Spain |
| B23 | Fiamene | Italy |
| B24 | Cesson | France |
| B25 | Catania | Italy |
| B26 | Observatoire des Terres Blanches, Reillanne | France |
| B27 | Picard Observatory, St. Veit | Austria |
| B28 | Mandi Observatory, Pagnacco | Italy |
| B29 | L'Ampolla Observatory, Tarragona | Spain |
| B30 | Szamotuly-Galowo | Poland |
| B31 | Southern African Large Telescope, Sutherland | South Africa |
| B32 | Gelenau | Germany |
| B33 | Libbiano Observatory, Peccioli | Italy |
| B34 | Green Island Observatory, Gecitkale | Cyprus |
| B35 | Bareket Observatory, Macabim | Israel |
| B36 | Redshed Observatory, Kallham | Austria |
| B37 | Obs. de L' Ametlla del Valles, Barcelona | Spain |
| B38 | Santa Mama | Italy |
| B39 | Tradate | Italy |
| B40 | Skylive Observatory, Catania | Italy |
| B41 | Zlin Observatory | Czech Republi |
| B42 | Vitebsk | Belarus |
| B43 | Hennef | Germany |
| B44 | Eygalayes | France |
| B45 | Narama | Poland |
| B46 | Sintini Observatory, Alfonsine | Italy |
| B47 | Metsala Observatory, Espoo | Finland |
| B48 | Bocholt | Germany |
| B49 | Paus Observatory, Sabadell | Spain |
| B50 | Corner Observatory, Durmersheim | Germany |
| B51 | Vallauris | France |
| B52 | Observatorio El Far | Spain |
| B53 | Casal Lumbroso, Rome | Italy |
| B54 | Ager | Spain |
| B55 | Comeglians | Italy |
| B56 | Observatorio Sant Pere, Mataro | Spain |
| B57 | Laietania Observatory, Parets del Valles | Spain |
| B58 | Polaris Observatory, Budapest | Hungary |
| B59 | Borken | Germany |
| B60 | Deep Sky Observatorium, Bad Bentheim | Germany |
| B61 | Valldoreix Obs.,Sant Cugat del Valles | Spain |
| B62 | Brelingen | Germany |
| B63 | Solaris Observatory, Luczanowice | Poland |
| B64 | Slope Rock Observatory, Hyvinkaa | Finland |
| B65 | Komakallio Observatory, Kirkkonummi | Finland |
| B66 | Osservatorio di Casasco | Italy |
| B67 | Sternwarte Mirasteilas, Falera | Switzerland |
| B68 | Mount Matajur Observatory | Italy |
| B69 | Owls and Ravens Observatory, Holzgerlingen | Germany |
| B70 | Sant Celoni | Spain |
| B71 | Observatorio El Vendrell | Spain |
| B72 | Soerth Observatory | Germany |
| B73 | Mauren Valley Observatory, Holzgerlingen | Germany |
| B74 | Santa Maria de Montmagastrell | Spain |
| B75 | Stazione Astronomica Betelgeuse, Magnago | Italy |
| B76 | Sternwarte Schonfeld, Dresden | Germany |
| B77 | Schafmatt Observatory, Aarau | Switzerland |
| B78 | Astrophoton Observatory, Audorf | Austria |
| B79 | Marana Observatory | Italy |
| B80 | Osservatorio Astronomico Campomaggiore | Italy |
| B81 | Caimari | Spain |
| B82 | Maidbronn | Germany |
| B83 | Gieres | France |
| B84 | Cyclops Observatory, Oostkapelle | Netherlands |
| B85 | Beilen Observatory | Netherlands |
| B86 | Sternwarte Hagen | Germany |
| B87 | Banyoles | Spain |
| B88 | Bigmuskie Observatory, Mombercelli | Italy |
| B89 | Observatori Astronomic de Tiana | Spain |
| B90 | Malina River Observatory, Povoletto | Italy |
| B91 | Bollwiller | France |
| B92 | Chinon | France |
| B93 | Hoogeveen | Netherlands |
| B94 | Petrozavodsk | Russia |
| B95 | Achternholt | Germany |
| B96 | Brixiis Observatory, Kruibeke | Belgium |
| B97 | Sterrenwacht Andromeda, Meppel | Netherlands |
| B98 | Siena | Italy |
| B99 | Santa Coloma de Gramenet | Spain |
| C00 | Velikie Luki | Russian |
| C01 | Lohrmann-Observatorium, Triebenberg | Germany |
| C02 | Observatorio Royal Park | Spain |
| C03 | Clayhole Observatory, Jokela | Finland |
| C04 | Kramatorsk | Ukraine |
| C05 | Konigsleiten | Austria |
| C06 | Krasnoyarsk | Russia |
| C07 | Anysllum Observatory, Ager | Spain |
| C08 | Fiby | Sweden |
| C09 | Rouet | France |
| C10 | Maisoncelles | France |
| C11 | City Observatory, Slany | Czech Republi |
| C12 | Berta Observatory, Sabadell | Spain |
| C13 | Como | Italy |
| C14 | Sky Vistas Observatory, Eichgraben | Austria |
| C15 | ISON-Ussuriysk Observatory | Russia |
| C16 | Isarwinkel Observatory, Bad Tolz | Germany |
| C17 | Observatorio Joan Roget, Ager | Spain |
| C18 | Frasnes-Lez-Anvaing | Belgium |
| C19 | ROSA Observatory, Vaucluse | France |
| C20 | Kislovodsk Mtn. Astronomical Stn., Pulkovo Obs. | Russia |
| C21 | Observatorio Via Lactea, Ager | Spain |
| C22 | Oberwiesenthal | Germany |
| C23 | Olmen | Belgium |
| C24 | Seveso | Italy |
| C25 | Pulkovo Observatory Station, Campo Imperatore | Italy |
| C26 | Levendaal Observatory, Leiden | Netherlands |
| C27 | Pallerols | Spain |
| C28 | Wellinghofen | Germany |
| C29 | Observatori Astronomic de Les Planes de Son | Spain |
| C30 | Petrozavodsk University Obs., Sheltozero Stn. | Russia |
| C31 | Sternwarte Neanderhoehe Hochdahl e.V., Erkrath | Germany |
| C32 | Ka-Dar Observatory, TAU Station, Nizhny Arkhyz | Russia |
| C33 | Observatorio CEAM, Caimari | Spain |
| C34 | Baja Astronomical Observatory | Hungary |
| C35 | Terrassa | Spain |
| C36 | Starry Wanderer Observatory, Baran' | Belarus |
| C37 | Stowupland | England (UK) |
| C38 | Varuna Observatory, Cuorgne | Italy |
| C39 | Nijmegen | Netherlands |
| C40 | Kuban State University Astrophysical Observatory | Russia |
| C41 | MASTER-II Observatory, Kislovodsk | Russia |
| C42 | Xingming Observatory, Mt. Nanshan | China |
| C43 | Hoyerswerda | Germany |
| C44 | A. Volta Observatory, Lanzo d'Intelvi | Italy |
| C45 | La Giustiniana | Italy |
| C46 | Horizon Observatory, Petropavlovsk | Kazakhstan |
| C47 | Nonndorf | Austria |
| C48 | Sayan Solar Observatory, Irkutsk | Russia |
| C49 | STEREO-A | |
| C50 | STEREO-B | |
| C51 | WISE | |
| C52 | Swift | |
| C53 | NEOSSat | |
| C54 | New Horizons | |
| C55 | Kepler | |
| C56 | LISA-Pathfinder | |
| C57 | TESS | |
| C58 | NEO Surveyor | |
| C59 | Yangwang-1 | |
| C60 | Argelander Institute for Astronomy Obs., Bonn | Germany |
| C61 | Chelles | France |
| C62 | Eurac Observatory, Bolzano | Italy |
| C63 | Giuseppe Piazzi Observatory, Ponte in Valtellina | Italy |
| C64 | Puchenstuben | Austria |
| C65 | Observatori Astronomic del Montsec | Spain |
| C66 | Observatorio El Cielo de Consell | Spain |
| C67 | Gnevsdorf | Germany |
| C68 | Ellinogermaniki Agogi Observatory, Pallini | Greece |
| C69 | Bayerwald Sternwarte, Neuhuette | Germany |
| C70 | Uiterstegracht Station, Leiden | Netherlands |
| C71 | Sant Marti Sesgueioles | Spain |
| C72 | Palestrina | Italy |
| C73 | Galati Observatory | Romania |
| C74 | Observatorio El Teatrillo de Lyra, Ager | Spain |
| C75 | Whitestar Observatory, Borgobello | Italy |
| C76 | Observatorio Estels, Ager | Spain |
| C77 | Bernezzo Observatory | Italy |
| C78 | Martin S. Kraar Observatory, Rehovot | Israel |
| C79 | Roser Observatory, Blanes | Spain |
| C80 | Don Astronomical Observatory, Rostov-on-Don | Russia |
| C81 | Dolomites Astronomical Observatory | Italy |
| C82 | Osservatorio Astronomico Nastro Verde, Sorrento | Italy |
| C83 | Badalozhnyj Observatory | Russia |
| C84 | Badalona | Spain |
| C85 | Observatorio Cala d'Hort, Ibiza | Spain |
| C86 | Blanes | Spain |
| C87 | Rimbach | Germany |
| C88 | Montarrenti Observatory, Siena | Italy |
| C89 | Astronomical Station Vidojevica | Serbia |
| C90 | Vinyols | Spain |
| C91 | Montevenere Observatory, Monzuno | Italy |
| C92 | Valdicerro Observatory, Loreto | Italy |
| C93 | Bellavista Observatory, L'Aquila | Italy |
| C94 | MASTER-II Observatory, Tunka | Russia |
| C95 | SATINO Remote Observatory, Haute Provence | France |
| C96 | OACL Observatory, Mosciano Sant Angelo | Italy |
| C97 | Al-Fulaij Observatory, Oman | Oman |
| C98 | Osservatorio Casellina, Scandicci | Italy |
| C99 | Observatori Can Roig, Llagostera | Spain |
| D00 | ASC-Kislovodsk Observatory | Russia |
| D01 | Andean Northern Observatory, Nummi-Pusula | Finland |
| D02 | Observatori Petit Sant Feliu | Spain |
| D03 | Rantiga Osservatorio, Tincana | Italy |
| D04 | Krasnodar | Russia |
| D05 | ISON-Terskol Observatory | Russia |
| D06 | Associazione Tuscolana di Astronomia, Domatore | Italy |
| D07 | Wegberg | Germany |
| D08 | Ghezz Observatory, Leontica | Switzerland |
| D09 | Observatory Gromme, Maasmechelen | Belgium |
| D10 | Gaertringen | Germany |
| D11 | Bastidan Observatory | France |
| D12 | Filzi School Observatory, Laives | Italy |
| D13 | Cat's Eye Observatory | Italy |
| D14 | Nanchuan Observatory, Guangzhou | China |
| D15 | Sternwarte F.Schiller-Gymnasium, Weimar | Germany |
| D16 | Po Leung Kuk Observatory, Tuen Mun | China |
| D17 | Hong Kong | China |
| D18 | Mt. Guizi Observatory | China |
| D19 | Hong Kong Space Museum Sai Kung iObservatory | China |
| D20 | Zadko Observatory, Wallingup Plain | Western Australia (Australia) |
| D21 | Shenton Park | Western Australia (Australia) |
| D22 | UWA Observatory, Crawley | Western Australia (Australia) |
| D23 | OAIA, Alcarras | Spain |
| D24 | LightBuckets Observatory, Pingelly | Western Australia (Australia) |
| D25 | Tzec Maun Observatory, Pingelly (before 2010) | Western Australia (Australia) |
| D26 | Peyrole Observatory, Peyrole | France |
| D27 | Observatoire de Fontcaude, Juvignac | France |
| D28 | Escaldarium Observatory,Caldes de Montbui | Spain |
| D29 | Purple Mountain Observatory, XuYi Station | China |
| D30 | Sternwarte Silbergraben, Erfurt | Germany |
| D31 | Osservatorio Aldebaran, Rivalba | Italy |
| D32 | JiangNanTianChi Observatory, Mt. Getianling | China |
| D33 | Kenting Observatory, Checheng | Taiwan |
| D34 | Kenting Observatory, Hengchun | Taiwan |
| D35 | Lulin Observatory | Taiwan |
| D36 | Tataka, Mt. Yu-Shan National Park | Taiwan |
| D37 | Lulin Widefield Telescope, Mt. Lulin | Taiwan |
| D38 | Tecnosky Astropark, Felizzano | Italy |
| D39 | Shandong University Observatory, Weihai | China |
| D40 | Frosinone | Italy |
| D41 | Osservatorio Astronomico Orciatico | Italy |
| D42 | Piero Angela Observatory, Scandicci | Italy |
| D43 | 45th Parallel Observatory, Pino Torinese | Italy |
| D44 | Ishigakijima Astronomical Observatory | Japan |
| D45 | Kamyk, Trzesn | Poland |
| D46 | Observatory Bad Wurzach | Germany |
| D47 | BigBang Observatory, Manciano | Italy |
| D48 | Niederbexbach Observatory | Germany |
| D49 | L'Ametlla de Mar | Spain |
| D50 | Vaucluse Observatoire Celeste, Blauvac | France |
| D51 | Plateau Astronomique La Couronne | France |
| D52 | ULU Observatory, Caselle Landi | Italy |
| D53 | ISON-Blagoveschensk Observatory | Russia |
| D54 | MASTER-II Observatory, Blagoveshchensk | Russia |
| D55 | Kangwon Science High School Observatory, Ksho | South Korea |
| D56 | Osservatorio Sideris Oculus, San Pietro in Gu | Italy |
| D57 | Gimhae Astronomical Observatory, Uhbang-dong | South Korea |
| D58 | KSA SEM Observatory, Danggam-dong | South Korea |
| D59 | MARIAMIR, Saint-Jeannet | France |
| D60 | Sparky's Stars, Masseris | Italy |
| D61 | Suntopia Marina, Sumoto | Japan |
| D62 | Miyaki-Argenteus | Japan |
| D63 | G. Pascoli Observatory, Barga (since June 2023) | Italy |
| D64 | Fucama, Casalincontrada | Italy |
| D65 | G. Beltrame, Arcugnano Vicenza | Italy |
| D66 | Civico Osservatorio Astronomico di Rozzano | Italy |
| D67 | Tula Rooftop Observatory, Tula | Russia |
| D68 | Osservatorio Galileo, Padova | Italy |
| D69 | JMU Space-Observatory | Germany |
| D70 | Tosa | Japan |
| D71 | ObservaSTYRium, Stainz bei Straden | Austria |
| D72 | WAA Remote Observatory, Hakos | Namibia |
| D73 | SNX-NET, Hakos | Namibia |
| D74 | Nakagawa | Japan |
| D75 | Cariati | Italy |
| D76 | AAT-Terrassa, Terrassa | Spain |
| D77 | TD-TRO (Tuscany Remote Observatory) | Italy |
| D78 | Iga-Ueno | Japan |
| D79 | YSVP Observatory, Vale Park | South Australia (Australia) |
| D80 | Gumma Astronomical Observatory | Japan |
| D81 | Nagano | Japan |
| D82 | Wallaroo | South Australia (Australia) |
| D83 | Miwa | Japan |
| D84 | Hallet Cove | South Australia (Australia) |
| D85 | Ingle Farm | South Australia (Australia) |
| D86 | Penwortham | South Australia (Australia) |
| D87 | Brooklyn Park | South Australia (Australia) |
| D88 | Hiratsuka | Japan |
| D89 | Yamagata | Japan |
| D90 | RAS Observatory, Moorook | South Australia (Australia) |
| D91 | Adati | Japan |
| D92 | Osaki | Japan |
| D93 | Sendai Astronomical Observatory | Japan |
| D94 | Takanezawa, Tochigi | Japan |
| D95 | Kurihara | Japan |
| D96 | Tzec Maun Observatory, Moorook | South Australia (Australia) |
| D97 | Berri | South Australia (Australia) |
| D98 | Loiano TANDEM | Italy |
| D99 | AstroKoT, Port-Ste-Marie | France |
| E00 | Castlemaine | Victoria (Australia) |
| E01 | Barfold | Victoria (Australia) |
| E03 | RAS Observatory, Officer | Victoria (Australia) |
| E04 | Pacific Sky Observatory, Saipan | Saipan, Northern Mariana Islands (US) |
| E05 | Earl Hill Observatory, Trinity Beach | Queensland (Australia) |
| E07 | Murrumbateman | New South Wales (Australia) |
| E08 | Wobblesock Observatory, Coonabarabran | New South Wales (Australia) |
| E09 | Oakley Southern Sky Observatory, Coonabarabran | New South Wales (Australia) |
| E10 | Siding Spring-Faulkes Telescope South | New South Wales (Australia) |
| E11 | Frog Rock Observatory, Mudgee | New South Wales (Australia) |
| E12 | Siding Spring Survey | New South Wales (Australia) |
| E13 | Wanniassa | Australian Capital Territory (Australia) |
| E14 | Hunters Hill Observatory, Ngunnawal | Australian Capital Territory (Australia) |
| E15 | Magellan Observatory, near Goulburn | New South Wales (Australia) |
| E16 | Grove Creek Observatory, Trunkey | New South Wales (Australia) |
| E17 | Leura | New South Wales (Australia) |
| E18 | BDI Observatory, Regents Park | New South Wales (Australia) |
| E19 | Kingsgrove | New South Wales (Australia) |
| E20 | Marsfield | New South Wales (Australia) |
| E21 | Norma Rose Observatory, Leyburn | Queensland (Australia) |
| E22 | Univ. of Southern Queensland Obs., Mt. Kent | Queensland (Australia) |
| E23 | Arcadia | New South Wales (Australia) |
| E24 | Tangra Observatory, St. Clair | New South Wales (Australia) |
| E25 | Rochedale (APTA) | Queensland (Australia) |
| E26 | RAS Observatory, Biggera Waters | Queensland (Australia) |
| E27 | Thornlands | Queensland (Australia) |
| E28 | Kuriwa Observatory, Hawkesbury Heights | New South Wales (Australia) |
| E29 | Mardella Observatory | Western Australia (Australia) |
| E41 | Strathalbyn | South Australia (Australia) |
| E42 | AUSTRALIA1/SRI, Swan Reach | South Australia (Australia) |
| E52 | The Rock Regional Observatory, The Rock | New South Wales (Australia) |
| E55 | GOTO South | New South Wales (Australia) |
| E62 | Slooh.com Australia, Coonabarabran | New South Wales (Australia) |
| E81 | Nelson | New Zealand |
| E83 | Wither Observatory, Witherlea | New Zealand |
| E84 | Twizel Observatory | New Zealand |
| E85 | Farm Cove | New Zealand |
| E86 | Speranza Observatory, Otaki | New Zealand |
| E87 | Turitea | New Zealand |
| E89 | Geyserland Observatory, Pukehangi | New Zealand |
| E94 | Possum Observatory, Gisborne | New Zealand |
| F51 | Pan-STARRS 1, Haleakala | Hawaii (US) |
| F52 | Pan-STARRS 2, Haleakala | Hawaii (US) |
| F59 | Ironwood Remote Observatory, Hawaii | Hawaii (US) |
| F60 | Ironwood Observatory, Hawaii | Hawaii (US) |
| F65 | Haleakala-Faulkes Telescope North | Hawaii (US) |
| F84 | Hibiscus Observatory, Punaauia | Tahiti |
| F85 | Tiki Observatory, Punaauia | Tahiti |
| F86 | Moana Observatory, Punaauia | Tahiti |
| G00 | AZM Martinsberg, Oed | Austria |
| G01 | Universitaetssternwarte Oldenburg | Germany |
| G02 | KYSUCE Observatory, Kysucke Nove Mesto | Slovakia |
| G03 | Capricornus Observatory, Csokako | Hungary |
| G04 | Schuelerlabor Astronomie St. 7, Wuppertal | Germany |
| G05 | Piconcillo, Sierra Morena | Spain |
| G06 | Dordrecht, Sterrenburg | Netherlands |
| G07 | Millau Observatory | France |
| G08 | Observatorio Les Pedritxes, Matadepera | Spain |
| G09 | SWF Observatory, South Woodham Ferrers | England (UK) |
| G10 | Clavier Observatory, Lora Del Rio | Spain |
| G11 | Breitenweg Observatory, Herkenrath | Germany |
| G12 | Sternwarte EG, Lippstadt | Germany |
| G13 | Astronomihagen, Fannrem | Norway |
| G14 | Novaloop Observatory, Mougins | France |
| G15 | Magroforte Observatory, Alessandria | Italy |
| G16 | OmegaLab Observatory, Palermo | Italy |
| G17 | BAS Observatory, Scandicci | Italy |
| G18 | ALMO Observatory, Padulle | Italy |
| G19 | Immanuel Kant Observatory,Limbach | Germany |
| G20 | Brignoles Observatory | France |
| G21 | Osservatorio Castrofilippo | Italy |
| G22 | Experimenta Observatory, Heilbronn | Germany |
| G23 | Vulpecula Observatory, Budapest | Hungary |
| G24 | Dettenhausen | Germany |
| G25 | Sherbrooke | Quebec (Canada) |
| G26 | Fushan Observatory, Mt Shaohua | China |
| G27 | Fabra Observatory, Montsec | Spain |
| G28 | Wyncroft Observatory, Attleborough | England (UK) |
| G29 | Requena | Spain |
| G30 | Casselman | Ontario (Canada) |
| G31 | CCAT Trieste | Italy |
| G32 | Elena Remote Observatory, San Pedro de Atacama | Chile |
| G33 | Wickede | Germany |
| G34 | Oberfrauendorf | Germany |
| G35 | Elephant Head Obsevatory, Sahuarita | Arizona (US) |
| G36 | Calar Alto-CASADO | Spain |
| G37 | Lowell Discovery Telescope | Arizona (US) |
| G38 | Observatorio La Senda, Cabanillas del Campo | Spain |
| G39 | ROAD, San Pedro de Atacama | Chile |
| G40 | Slooh.com Canary Islands Observatory | Canary Island |
| G41 | Insperity Observatory, Humble | Texas (US) |
| G42 | Observatorio Astronomico UAdeC, Saltillo | Mexico |
| G43 | Observatorio Buenaventura Suarez, San Luis | Argentina |
| G44 | Observatorio Longa Vista, Sao Paulo | Brazil |
| G45 | Space Surveillance Telescope, Atom Site | New Mexico (US) |
| G46 | Pinto Valley Observatory | California (US) |
| G47 | HillTopTop Observatory, Edgewood | New Mexico (US) |
| G48 | Harlingten Research Observatory, Rancho Hildalgo | New Mexico (US) |
| G49 | Minnetonka | Minnesota (US) |
| G50 | Organ Mesa Observatory, Las Cruces | New Mexico (US) |
| G51 | Byrne Observatory, Sedgwick Reserve | California (US) |
| G52 | Stone Edge Observatory, El Verano | California (US) |
| G53 | Alder Springs Observatory, Auberry | California (US) |
| G54 | Hemet | California (US) |
| G55 | Bakersfield | California (US) |
| G56 | Walnut Creek | California (US) |
| G57 | Dilbert Observatory, Forest Grove | Oregon (US) |
| G58 | Chabot Space and Science Center, Oakland | California (US) |
| G59 | Maiden Lane Obs., Bainbridge Island | Washington (US) |
| G60 | Carroll Observatory, Montecito | California (US) |
| G61 | Pleasanton | California (US) |
| G62 | Sunriver Nature Center Observatory, Sunriver | Oregon (US) |
| G63 | Mill Creek Observatory, The Dalles | Oregon (US) |
| G64 | Blue Canyon Observatory | California (US) |
| G65 | Vulcan North, Lick Observatory, Mount Hamilton | California (US) |
| G66 | Lake Forest Observatory, Forest Hills | California (US) |
| G67 | Rancho Del Sol, Camino | California (US) |
| G68 | Sierra Stars Observatory, Markleeville | California (US) |
| G69 | Via Capote Sky Observatory, Thousand Oaks | California (US) |
| G70 | Francisquito Observatory, Los Angeles | California (US) |
| G71 | Rancho Palos Verdes | California (US) |
| G72 | University Hills | California (US) |
| G73 | Mount Wilson-TIE | California (US) |
| G74 | Boulder Knolls Observatory, Escondido | California (US) |
| G75 | Starry Knight Observatory, Coto de Caza | California (US) |
| G76 | Altimira Observatory, Coto de Caza | California (US) |
| G77 | Baldwin Lake | California (US) |
| G78 | Desert Wanderer Observatory, El Centro | California (US) |
| G79 | Goat Mountain Astronomical Research Station | California (US) |
| G80 | Sierra Remote Observatories, Auberry | California (US) |
| G81 | Temecula | California (US) |
| G82 | SARA Observatory, Kitt Peak | Arizona (US) |
| G83 | Mt. Graham-LBT | Arizona (US) |
| G84 | Mount Lemmon SkyCenter | Arizona (US) |
| G85 | Vermillion Cliffs Observatory, Kanab | Utah (US) |
| G86 | Tucson-Winterhaven | Arizona (US) |
| G87 | Calvin M. Hooper Memorial Observatory, Hyde Park | Utah (US) |
| G88 | LAMP Observatory, New River | Arizona (US) |
| G89 | Kachina Observatory, Flagstaff | Arizona (US) |
| G90 | Three Buttes Observatory, Tucson | Arizona (US) |
| G91 | Whipple Observatory, Mt. Hopkins--2MASS | Arizona (US) |
| G92 | Jarnac Observatory, Vail | Arizona (US) |
| G93 | Sonoita Research Observatory, Sonoita | Arizona (US) |
| G94 | Sonoran Skies Observatory, St. David | Arizona (US) |
| G95 | Hereford Arizona Observatory, Hereford | Arizona (US) |
| G96 | Mt. Lemmon Survey | Arizona (US) |
| G97 | Astronomical League Alpha Observatory, Portal | Arizona (US) |
| G98 | Calvin-Rehoboth Observatory, Rehoboth | New Mexico (US) |
| G99 | NF Observatory, Silver City | New Mexico (US) |
| H00 | Tyrone | New Mexico (US) |
| H01 | Magdalena Ridge Observatory, Socorro | New Mexico (US) |
| H02 | Sulphur Flats Observatory, La Cueva | New Mexico (US) |
| H03 | Sandia View Observatory, Rio Rancho | New Mexico (US) |
| H04 | Santa Fe | New Mexico (US) |
| H05 | Edmund Kline Observatory, Deer Trail | Colorado (US) |
| H06 | iTelescope Observatory, Mayhill | New Mexico (US) |
| H07 | 7300 Observatory, Cloudcroft | New Mexico (US) |
| H08 | BlackBird Observatory, Cloudcroft | New Mexico (US) |
| H09 | Antelope Hills Observatory, Bennett | Colorado (US) |
| H10 | Tzec Maun Observatory, Mayhill | New Mexico (US) |
| H11 | LightBuckets Observatory, Rodeo | New Mexico (US) |
| H12 | TechDome, Mayhill | New Mexico (US) |
| H13 | Lenomiya Observatory, Casa Grande | Arizona (US) |
| H14 | Morning Star Observatory, Tucson | Arizona (US) |
| H15 | ISON-NM Observatory, Mayhill | New Mexico (US) |
| H16 | HUT Observatory, Eagle | Colorado (US) |
| H17 | Angel Peaks Observatory | Colorado (US) |
| H18 | Vail View Observatory, Vail | Arizona (US) |
| H19 | Lone Star Observatory, Caney | Oklahoma (US) |
| H20 | Eastern Illinois University Obs., Charleston | Illinois (US) |
| H21 | Astronomical Research Observatory, Westfield | Illinois (US) |
| H22 | Terre Haute | Indiana (US) |
| H23 | Pear Tree Observatory, Valparaiso | Florida (US) |
| H24 | J. C. Veen Observatory, Lowell | Michigan (US) |
| H25 | Harvest Moon Observatory, Northfield | Minnesota (US) |
| H26 | Doc Greiner Research Observatory, Janesvillle | Wisconsin (US) |
| H27 | Moonglow Observatory, Warrensburg | Missouri (US) |
| H28 | Preston Hills Observatory, Celina | Texas (US) |
| H29 | Ivywood Observatory, Edmond | Oklahoma (US) |
| H30 | University of Oklahoma Observatory, Norman | Oklahoma (US) |
| H31 | Star Ridge Observatory, Weimar | Texas (US) |
| H32 | Texas A&M Physics Observatory, College Station | Texas (US) |
| H33 | Bixhoma Observatory, Bixby | Oklahoma (US) |
| H34 | Chapel Hill | Texas (US) |
| H35 | Leavenworth | Kansas (US) |
| H36 | Sandlot Observatory, Scranton | Kansas (US) |
| H37 | Grems Timmons Observatories, Graettinger | Iowa (US) |
| H38 | Timberline Observatory, Urbandale | Iowa (US) |
| H39 | S.O.S. Observatory, Minneapolis | Minnesota (US) |
| H40 | Nubbin Ridge Observatory | Arkansas (US) |
| H41 | Petit Jean Mountain | Arkansas (US) |
| H42 | Wartburg College Observatory, Waverly | Iowa (US) |
| H43 | Conway | Arkansas (US) |
| H44 | Cascade Mountain | Arkansas (US) |
| H45 | Arkansas Sky Obs., Petit Jean Mountain South | Arkansas (US) |
| H46 | Ricky Observatory, Blue Springs | Missouri (US) |
| H47 | Vicksburg | Mississipp (US) |
| H48 | PSU Greenbush Observatory, Pittsburg | Kansas (US) |
| H49 | ATU Astronomical Observatory, Russellville | Arkansas (US) |
| H50 | University of Central Arkansas Obs., Conway | Arkansas (US) |
| H51 | Greiner Research Observatory, Verona | Wisconsin (US) |
| H52 | Hawkeye Observatory, Durand | Illinois (US) |
| H53 | Thompsonville | Illinois (US) |
| H54 | Cedar Drive Observatory, Pulaski | Wisconsin (US) |
| H55 | Astronomical Research Observatory, Charleston | Illinois (US) |
| H56 | Northbrook Meadow Observatory | Illinois (US) |
| H57 | Ohio State University Observatory, Lima | Ohio (US) |
| H58 | NASA/MSFC ALaMO, Redstone Arsenal | Alabama (US) |
| H59 | Prairie Grass Observatory, Camp Cullom | Indiana (US) |
| H60 | Heartland Observatory, Carmel | Indiana (US) |
| H61 | Newcastle | Ontario (Canada) |
| H62 | Calvin College Observatory | Michigan (US) |
| H63 | DeKalb Observatory, Auburn | Indiana (US) |
| H64 | Thomas More College Observatory, Crestview Hills | Kentucky (US) |
| H65 | Waltonfields Observatory, Walton | Kentucky (US) |
| H66 | Yellow Springs | Ohio (US) |
| H67 | Stonegate Observatory, Ann Arbor | Michigan (US) |
| H68 | Red Barn Observatory, Ty Ty | Georgia (US) |
| H69 | Perkins Observatory, Delaware | Ohio (US) |
| H70 | Asheville | North Carolina (US) |
| H71 | Chula | Georgia (US) |
| H72 | Evelyn L. Egan Observatory, Fort Myers | Florida (US) |
| H73 | Lakeland Astronomical Observatory, Kirtland | Ohio (US) |
| H74 | Bar J Observatory, New Smyrna Beach | Florida (US) |
| H75 | Indian Hill North Observatory, Huntsburg | Ohio (US) |
| H76 | Oakridge Observatory, Miami | Florida (US) |
| H77 | Buehler Observatory | Florida (US) |
| H78 | University of Narino Observatory, Pasto | Colombia |
| H79 | York University Observatory, Toronto | Ontario (Canada) |
| H80 | Halsted Observatory, Princeton | New Jersey (US) |
| H81 | Hartung-Boothroyd Observatory, Ithaca | New York (US) |
| H82 | CBA-NOVAC Observatory, Front Royal | Virginia (US) |
| H83 | Timberlake Observatory, Oakton | Virginia (US) |
| H84 | Northview Observatory, Mendon | New York (US) |
| H85 | Silver Spring | Maryland (US) |
| H86 | CBA-East Observatory, Laurel | Maryland (US) |
| H87 | Fenwick Observatory, Richmond | Virginia (US) |
| H88 | Hope Observatory, Belcamp | Maryland (US) |
| H89 | Galaxy Blues Observatory, Gatineau | Quebec (Canada) |
| H90 | Ottawa | Ontario (Canada) |
| H91 | Reynolds Observatory, Potsdam | New York (US) |
| H92 | Arcturus Observatory | New Jersey (US) |
| H93 | Berkeley Heights | NJersey (US) |
| H94 | Cedar Knolls | NJersey (US) |
| H95 | NJIT Observatory, Newark | NJersey (US) |
| H96 | Observatoire des Pleiades, Mandeville | Quebec (Canada) |
| H97 | Talcott Mountain Science Center, Avon | Connecticu (US) |
| H98 | Dark Rosanne Obs., Middlefield | Connecticu (US) |
| H99 | Sunhill Observatory, Newton | Massachuse (US) |
| I00 | Carbuncle Hill Observatory, Coventry | Rhode Island (US) |
| I01 | Clay Center Observatory, Brookline | Massachuse (US) |
| I02 | Cerro Tololo Observatory, La Serena--2MASS | Chile |
| I03 | European Southern Obs., La Silla--ASTROVIRTEL | Chile |
| I04 | Mamalluca Observatory | Chile |
| I05 | Las Campanas Observatory-TIE | Chile |
| I06 | Werner Schmidt Obs., Dennis-Yarmouth Regional HS | Massachuse (US) |
| I07 | Conlin Hill Observatory, Oxford | Massachuse (US) |
| I08 | Alianza S4, Cerro Burek | Argentina |
| I09 | Cerro Armazones | Chile |
| I10 | CAO, San Pedro de Atacama (until 2012) | Chile |
| I11 | Gemini South Observatory, Cerro Pachon | Chile |
| I12 | Phillips Academy Observatory, Andover | Massachuse (US) |
| I13 | Burleith Observatory, Washington D.C. | District of Columbia (US) |
| I14 | Tigh Speuran Observatory, Framingham | Massachuse (US) |
| I15 | Wishing Star Observatory, Barrington | Rhode Island (US) |
| I16 | IAA-AI Atacama, San Pedro de Atacama | Chile |
| I17 | Thomas G. Cupillari Observatory, Fleetville | Pennsylvan (US) |
| I18 | Fan Mountain Observatory, Covesville | Virginia (US) |
| I19 | Observatorio El Gato Gris, Tanti | Argentina |
| I20 | Observatorio Astronomico Salvador, Rio Cuarto | Argentina |
| I21 | El Condor Observatory, Cordoba | Argentina |
| I22 | Abbey Ridge Observatory, Stillwater Lake | Nova Scotia (Canada) |
| I23 | Frosty Cold Observatory, Mash Harbor | Maine (US) |
| I24 | Lake of the Woods Observatory, Locust Grove | Virginia (US) |
| I25 | ECCCO Observatory, Bosque Alegre | Argentina |
| I26 | Observatorio Kappa Crucis, Cordoba | Argentina |
| I27 | Barred Owl Observatory, Carp | Ontario (Canada) |
| I28 | Starhoo Observatory, Lakeville | Massachuse (US) |
| I29 | Middlesex School Observatory, Concord | Massachuse (US) |
| I30 | Observatorio Geminis Austral | Argentina |
| I31 | Observatorio Astronomico del Colegio Cristo Rey | Argentina |
| I32 | Observatorio Beta Orionis, Rosario | Argentina |
| I33 | SOAR, Cerro Pachon | Chile |
| I34 | Morgantown | Pennsylvan (US) |
| I35 | Sidoli | Argentina |
| I36 | Observatorio Los Campitos, Canuelas | Argentina |
| I37 | Astrodomi Observatory, Santa Rita | Argentina |
| I38 | Observatorio Los Algarrobos, Salto | Uruguay |
| I39 | Observatorio Cruz del Sur, San Justo | Argentina |
| I40 | La Silla--TRAPPIST | Chile |
| I41 | Palomar Mountain--ZTF | California (US) |
| I42 | Westport Observatory | Massachuse (US) |
| I43 | Tarleton State University Obs., Stephenville | Texas (US) |
| I44 | Northwest Florida State College, Niceville | Florida (US) |
| I45 | W Crusis Astronomical Observatory, San Justo | Argentina |
| I46 | The Cottage Observatory, Altoona | Pennsylvan (US) |
| I47 | Pierre Auger Observatory, Malargue | Argentina |
| I48 | Observatorio El Catalejo, Santa Rosa | Argentina |
| I49 | Sunflower Observatory, Santa Fe | New Mexico (US) |
| I50 | P2 Observatory, Mayhill | New Mexico (US) |
| I51 | Clinton | Maryland (US) |
| I52 | Steward Observatory, Mt. Lemmon Station | Arizona (US) |
| I53 | Armilla | Spain |
| I54 | Observatorio Las Vaguadas, Badajoz | Spain |
| I55 | Valencia | Spain |
| I56 | Observatorio Astronomico John Beckman, Almeria | Spain |
| I57 | Elche | Spain |
| I58 | Betera | Spain |
| I59 | Observatorio Fuente de los matos, Muriedas | Spain |
| I60 | Guernanderf | France |
| I61 | Ourense | Spain |
| I62 | Observatorio Helios Ontigola | Spain |
| I63 | Cygnus Observatory, New Airesford | England (UK) |
| I64 | Maidenhead | England (UK) |
| I65 | Yunquera | Spain |
| I66 | Taurus Australis Observatory, Brasilia | Brazil |
| I67 | Hartley Wintney | England (UK) |
| I68 | Pousada dos Anoes Observatory | Brazil |
| I69 | AGM Observatory, Marrakech | Morocco |
| I70 | Gedney House Observatory, Kirton | England (UK) |
| I71 | Observatorio Los Milanos, Caceres | Spain |
| I72 | Observatorio Carpe-Noctem, Madrid | Spain |
| I73 | Salvia Observatory, Saulges | France |
| I74 | Baxter Garden Observatory, Salisbury | England (UK) |
| I75 | Observatorio Los Caracoles, Castello | Spain |
| I76 | Observatorio Tesla, Valdemorillo | Spain |
| I77 | CEAMIG-REA Observatory, Belo Horizonte | Brazil |
| I78 | Observatorio Principia, Malaga | Spain |
| I79 | AstroCamp, Nerpio | Spain |
| I80 | Rose Cottage Observatory, Keighley | England (UK) |
| I81 | Tarbatness Observatory, Portmahomack | Scotland (UK) |
| I82 | Guimar | Canary Island |
| I83 | Cherryvalley Observatory, Rathmolyon | Ireland |
| I84 | Cerro del Viento, Badajoz | Spain |
| I85 | Las Negras | Spain |
| I86 | Observatorio UCM, Madrid | Spain |
| I87 | Astroshot Observatory, Monasterevin | Ireland |
| I88 | Fuensanta de Martos | Spain |
| I89 | iTelescope Observatory, Nerpio | Spain |
| I90 | Blackrock Castle Observatory | Ireland |
| I91 | Retamar | Spain |
| I92 | Astreo Observatory, Mairena del Aljarafe | Spain |
| I93 | St Pardon de Conques | France |
| I94 | Observatorio Rho Ophiocus, Las Rozas de Madrid | Spain |
| I95 | Observatorio de la Hita | Spain |
| I96 | Hyperion Observatory, Urbanizacion Caraquiz | Spain |
| I97 | Penn Heights Observatory, Rickmansworth | England (UK) |
| I98 | El Berrueco | Spain |
| I99 | Observatorio Blanquita, Vaciamadrid | Spain |
| J00 | Segorbe | Spain |
| J01 | Observatorio Cielo Profundo, Leon | Spain |
| J02 | Busot | Spain |
| J03 | Gothers Observatory, St. Dennis | England (UK) |
| J04 | ESA Optical Ground Station, Tenerife | Canary Island |
| J05 | Bootes Observatory, Boecillo | Spain |
| J06 | Trent Astronomical Observatory, Clifton | England (UK) |
| J07 | Observatorio SPAG Monfrague, Palazuelo-Empalme | Spain |
| J08 | Observatorio Zonalunar, Puzol | Spain |
| J09 | Balbriggan | Ireland |
| J10 | Alicante | Spain |
| J11 | Matosinhos | Portugal |
| J12 | Caraquiz | Spain |
| J13 | La Palma-Liverpool Telescope | Canary Island |
| J14 | La Corte | Canary Island |
| J15 | Muxagata | Portugal |
| J16 | An Carraig Observatory, Loughinisland | NIreland (UK) |
| J17 | Ragdon | England (UK) |
| J18 | Dingle Observatory, Montgomery | Wales (UK) |
| J19 | El Maestrat | Spain |
| J20 | Aravaca | Spain |
| J21 | El Boalo | Spain |
| J22 | Tacande Observatory, La Palma | Canary Island |
| J23 | Centre Astronomique de La Couyere | France |
| J24 | Observatorio Altamira | Canary Island |
| J25 | Penamayor Observatory, Nava | Spain |
| J26 | The Spaceguard Centre, Knighton | Wales (UK) |
| J27 | El Guijo Observatory | Spain |
| J28 | Jaen | Spain |
| J29 | Observatorio Nira, Tias | Canary Island |
| J30 | Observatorio Ventilla, Madrid | Spain |
| J31 | La Axarquia | Spain |
| J32 | Aljaraque | Spain |
| J33 | University of Hertfordshire Obs., Bayfordbury | England (UK) |
| J34 | La Fecha | Spain |
| J35 | Tucci Observatory, Martos | Spain |
| J36 | Observatorio DiezALaOnce, Illana | Spain |
| J37 | Huelva | Spain |
| J38 | Observatorio La Vara, Valdes | Spain |
| J39 | Ingenio | Canary Island |
| J40 | Malaga | Spain |
| J41 | Raheny | Ireland |
| J42 | Puzol | Spain |
| J43 | Oukaimeden Observatory, Marrakech | Morocco |
| J44 | Observatorio Iturrieta, Alava | Spain |
| J45 | Observatorio Montana Cabreja, Vega de San Mateo | Canary Island |
| J46 | Observatorio Montana Blanca, Tias | Canary Island |
| J47 | Observatorio Nazaret | Canary Island |
| J48 | Observatory Mackay, La Laguna | Canary Island |
| J49 | Santa Pola | Spain |
| J50 | La Palma-NEON | Canary Island |
| J51 | Observatorio Atlante, Tenerife | Canary Island |
| J52 | Observatorio Pinsoro | Spain |
| J53 | Posadas | Spain |
| J54 | Bradford Robotic Telescope | Canary Island |
| J55 | Los Altos de Arguineguin Observatory | Canary Island |
| J56 | Observatorio La Avejerilla | Canary Island |
| J57 | Centro Astronomico Alto Turia, Valencia | Spain |
| J58 | Brynllefrith Observatory, Llantwit Fardre | Wales (UK) |
| J59 | Observatorio Linceo, Santander | Spain |
| J60 | Tocororo Observatory, Arquillinos | Spain |
| J61 | Brownstown Observatory, Kilcloon | Ireland |
| J62 | Kingsland Observatory, Boyle | Ireland |
| J63 | San Gabriel | Spain |
| J64 | La Mata | Spain |
| J65 | Celbridge | Ireland |
| J66 | Kinver | England (UK) |
| J67 | Observatorio La Puebla de Vallbona | Spain |
| J68 | Tweenhills Observatory, Hartpury | England (UK) |
| J69 | North Observatory, Clanfield | England (UK) |
| J70 | Obs. Astronomico Vega del Thader, El Palmar | Spain |
| J71 | Willow Bank Observatory | England (UK) |
| J72 | Valle del Sol | Spain |
| J73 | Quainton | England (UK) |
| J74 | Bilbao | Spain |
| J75 | OAM Observatory, La Sagra | Spain |
| J76 | La Murta | Spain |
| J77 | Golden Hill Observatory, Stourton Caundle | England (UK) |
| J78 | Murcia | Spain |
| J79 | Observatorio Calarreona, Aguilas | Spain |
| J80 | Sainte Helene | France |
| J81 | Guirguillano | Spain |
| J82 | Leyland | England (UK) |
| J83 | Olive Farm Observatory, Hoghton | England (UK) |
| J84 | South Observatory, Clanfield | England (UK) |
| J85 | Makerstoun | Scotland (UK) |
| J86 | Sierra Nevada Observatory | Spain |
| J87 | La Canada | Spain |
| J88 | Strawberry Field Obs., Southampton | England (UK) |
| J89 | Tres Cantos Observatory | Spain |
| J90 | West Challow | England (UK) |
| J91 | Alt emporda Observatory, Figueres | Spain |
| J92 | Beaconsfield | England (UK) |
| J93 | Mount Tuffley Observatory, Gloucester | England (UK) |
| J94 | Abbeydale | England (UK) |
| J95 | Great Shefford | England (UK) |
| J96 | Observatorio de Cantabria | Spain |
| J97 | Alginet | Spain |
| J98 | Observatorio Manises | Spain |
| J99 | Burjassot | Spain |
| K00 | Hanau | Germany |
| K01 | Astrognosis Observatory, Bradwell | England (UK) |
| K02 | Eastwood Observatory, Leigh on Sea | England (UK) |
| K03 | Observatori AAS Montsec | Spain |
| K04 | Lo Fossil Observatory, Ager | Spain |
| K05 | Eden Observatory, Banham | England (UK) |
| K06 | Observatorio Montagut, Can Sola | Spain |
| K07 | Observatoire de Gravelle, St. Maurice | France |
| K08 | Observatorio Lledoner, Vallirana | Spain |
| K09 | Llica d'Amunt | Spain |
| K10 | Micro Palomar, Reilhanette | France |
| K11 | Observatoire de Pommier | France |
| K12 | Obsevatorio Astronomico de Marratxi | Spain |
| K13 | Albireo Observatory, Inca | Spain |
| K14 | Observatorio de Sencelles | Spain |
| K15 | Murviel-les-Montpellier | France |
| K16 | Reilhanette | France |
| K17 | Observatoire des Valentines, Bex | Switzerland |
| K18 | Hesingue | France |
| K19 | PASTIS Observatory, Banon | France |
| K20 | Danastro Observatory, Romeree | Belgium |
| K21 | Saint-Saturnin-les-Avignon | France |
| K22 | Les Barres Observatory, Lamanon | France |
| K23 | Gorgonzola | Italy |
| K24 | Schmelz | Germany |
| K25 | Haute Provence Sud, Saint-Michel-l'Observatoire | France |
| K26 | Contern | Luxembourg |
| K27 | St-Martin Observatory, Amathay Vesigneux | France |
| K28 | Sternwarte Eckdorf | Germany |
| K29 | Stellarium Gornergrat | Switzerland |
| K30 | Luscherz | Switzerland |
| K31 | Osservatorio Astronomico di Bellino | Italy |
| K32 | Maritime Alps Observatory, Cuneo | Italy |
| K33 | San Defendente | Italy |
| K34 | Turin | Italy |
| K35 | Huenfelden | Germany |
| K36 | Ebersheim | Germany |
| K37 | Cereseto | Italy |
| K38 | M57 Observatory, Saltrio | Italy |
| K39 | Serra Observatory | Italy |
| K40 | Altdorf | Germany |
| K41 | Vegaquattro Astronomical Obs., Novi Ligure | Italy |
| K42 | Knielingen | Germany |
| K43 | OVM Observatory, Chiesa in Valmalencom | Italy |
| K44 | Marienburg Sternwarte, Hildesheim | Germany |
| K45 | Oss. Astronomico di Punta Falcone, Piombino | Italy |
| K46 | Bamberg | Germany |
| K47 | BSCR Observatory, Santa Maria a Monte | Italy |
| K48 | Keyhole Observatory, San Giorgio di Mantova | Italy |
| K49 | Carpione Observatory, Spedaletto | Italy |
| K50 | Sternwarte Feuerstein, Ebermannstadt | Germany |
| K51 | Osservatorio del Celado, Castello Tesino | Italy |
| K52 | Gwen Observatory, San Francesco al Campo | Italy |
| K53 | Marina di Cerveteri | Italy |
| K54 | Astronomical Observatory University of Siena | Italy |
| K55 | Wallhausen | Germany |
| K56 | Osservatorio di Foligno | Italy |
| K57 | Fiore Observatory | Italy |
| K58 | Gevelsberg | Germany |
| K59 | Elsterland Observatory, Jessnigk | Germany |
| K60 | Lindby | Sweden |
| K61 | Rokycany Observatory | Czech Republi |
| K62 | Teplice Observatory | Czech Republi |
| K63 | G. Pascoli Observatory, Barga (before June 2023) | Italy |
| K64 | Waizenreuth | Germany |
| K65 | Cesena | Italy |
| K66 | Osservatorio Astronomico di Anzio | Italy |
| K67 | Bayerwald Sternwarte, Spiegelau | Germany |
| K68 | Osservatorio Elianto, Pontecagnano | Italy |
| K69 | Riethnordhausen | Germany |
| K70 | Rosarno | Italy |
| K71 | Neutraubling | Germany |
| K72 | Celico | Italy |
| K73 | Gravina in Puglia | Italy |
| K74 | Muensterschwarzach Observatory, Schwarzach | Germany |
| K75 | Astro Dolomites, Santa Cristina Valgardena | Italy |
| K76 | BSA Osservatorio, Savigliano | Italy |
| K77 | EHB01 Observatory, Engelhardsberg | Germany |
| K78 | iota Scorpii Observatory, La Spezia | Italy |
| K79 | Erfurt | Germany |
| K80 | Platanus Observatory, Lusowko | Poland |
| K81 | P.M.P.H.R. Deep Sky Observatory, Atina | Italy |
| K82 | Alphard Observatory, Ostuni | Italy |
| K83 | Osservatorio Astronomico Beppe Forti, Montelupo | Italy |
| K84 | Felliscopio Observatory, Fellicarolo | Italy |
| K85 | Kelmis | Belgium |
| K86 | Brescia | Italy |
| K87 | Dettelbach Vineyard Observatory | Germany |
| K88 | GINOP-KHK, Piszkesteto | Hungary |
| K89 | Digital Stargate Observatory, Manciano | Italy |
| K90 | Sopot Astronomical Observatory | Serbia |
| K91 | Sutherland-LCO A | South Africa |
| K92 | Sutherland-LCO B | South Africa |
| K93 | Sutherland-LCO C | South Africa |
| K94 | Sutherland | South Africa |
| K95 | MASTER-SAAO Observatory, Sutherland | South Africa |
| K96 | Savelli Observatory | Italy |
| K97 | Freconrupt | France |
| K98 | 6ROADS Observatory 1, Wojnowko | Poland |
| K99 | Derenivka Observatory | Ukraine |
| L00 | East Rome Observatory, Rome | Italy |
| L01 | Visnjan Observatory, Tican | Croatia |
| L02 | NOAK Observatory, Stavraki | Greece |
| L03 | SGT Observatory, Gaflenz | Austria |
| L04 | ROASTERR-1 Observatory, Cluj-Napoca | Romania |
| L05 | Dridri Observatory, Franciacorta | Italy |
| L06 | Sormano 2 Observatory, Bellagio Via Lattea | Italy |
| L07 | Osservatorio Salvatore di Giacomo, Agerola | Italy |
| L08 | Metsahovi Optical Telescope, Metsahovi | Finland |
| L09 | Sutherland-LCO Aqawan A #1 | South Africa |
| L10 | Kryoneri Observatory | Greece |
| L11 | Sandvreten Observatory | Sweden |
| L12 | Koksijde | Belgium |
| L13 | Stardust Observatory, Brasov | Romania |
| L14 | Planetarium de Vaulx-en-Velin Observatory | France |
| L15 | St. George Observatory, Ploiesti | Romania |
| L16 | Stardreams Observatory, Valenii de Munte | Romania |
| L17 | Observatori Astronomic Albanya | Spain |
| L18 | QOS Observatory, Zalistsi | Ukraine |
| L19 | Osservatorio Felsina AAB, Montepastore | Italy |
| L20 | AG_Sarajevo Observatory, Sarajevo | Bosnia and Herzegovina |
| L21 | Ostrov Observatory, Constanta | Romania |
| L22 | Barlad Observatory | Romania |
| L23 | Schela Observatory | Romania |
| L24 | Gauteng | South Africa |
| L25 | Smolecin | Poland |
| L26 | Sanderphil Urban Observatory, Civitavecchia | Italy |
| L27 | 29PREMOTE Observatory, Dauban | France |
| L28 | ISON-Castelgrande Observatory | Italy |
| L29 | Drebach-South Observatory, Windhoek | Namibia |
| L30 | Lohbach Observatory, Benninghofen | Germany |
| L31 | RaSo Observatory, Chemnitz | Germany |
| L32 | Korea Microlensing Telescope Network-SAAO | South Africa |
| L33 | Ananiv | Ukraine |
| L34 | Galhassin Robotic Telescope, Isnello | Italy |
| L35 | DreamSky Observatory, Lisnyky | Ukraine |
| L36 | Ondrejov--BlueEye600 Telescope | Czech Republi |
| L37 | Observatorio Alnitak, El Puerto de Santa Maria | Spain |
| L38 | Gartensternwarte Schafsweide, Sehlde | Germany |
| L39 | Osservatorio Spica, Signa | Italy |
| L40 | Sternwarte Saarbruecken Rastpfuhl | Germany |
| L41 | Ponte Uso | Italy |
| L42 | Observatory-Astrocamp Manciano | Italy |
| L43 | Ager, Leida | Spain |
| L44 | AstroVal, Le Chenit | Switzerland |
| L45 | ObsCT, Catania | Italy |
| L46 | Observatorio Majadahonda | Spain |
| L47 | Osservatorio Astronomico, Piobbico | Italy |
| L48 | CNVL Observatory, Baia Mare | Romania |
| L49 | VEGA-Sternwarte, Dorfleiten | Austria |
| L50 | GenShtab Observatory, Nauchnyi | Ukraine |
| L51 | MARGO, Nauchnyi | Ukraine |
| L52 | MASTER-Tavrida | Ukraine |
| L53 | Aldo Agnetti Observatory, Como | Italy |
| L54 | Berthelot Observatory, Hunedoara | Romania |
| L55 | Sura Gardens, Dnipro | Ukraine |
| L56 | Sternwarte Limburg, Limburg | Germany |
| L57 | Bacau Observatory, Bacau | Romania |
| L58 | Heavenly Owl observatory | Ukraine |
| L59 | Compustar Observatory, Rouen | France |
| L60 | Popovich Observatory, Ivanivka | Ukraine |
| L61 | MONET South, Sutherland | South Africa |
| L62 | Hypatia Observatory, Rimini | Italy |
| L63 | HOB Observatory, Capraia Fiorentina | Italy |
| L64 | Martesana Observatory, Cassina de Pecchi | Italy |
| L65 | Bredenkamp Observatory, Bremen | Germany |
| L66 | MeerLICHT-1, Sutherland | South Africa |
| L67 | Cherkizovo Observatory, Moscow Oblast | Russia |
| L68 | PESCOPE, Port Elizabeth | South Africa |
| L69 | LaCaille Observatory, Pretoria | South Africa |
| L70 | Zvjezdarnica Graberje, Zagreb | Croatia |
| L71 | Vedrus Observatory, Azovskaya | Russia |
| L72 | Melezhy Astrophoto Observatory | Russia |
| L73 | Beato Ermanno Observatory, Impruneta | Italy |
| L74 | AstroColauri, Naples | Italy |
| L75 | Tartu Observatory of Tartu University | Estonia |
| L76 | Nomad Observatory, Kochevanchik | Russia |
| L77 | RDSS, Kovalevka | Russia |
| L78 | San Marco Observatory, Salerno | Italy |
| L79 | BOSZA Observatory, Szalanta | Hungary |
| L80 | SpringBok Observatory, Tivoli | Namibia |
| L81 | Skygems Namibia Remote Observatory | Namibia |
| L82 | Crow Observatory, Portalegre | Portugal |
| L83 | UJA Observatory, Jaen | Spain |
| L84 | Kairos Observatory, Letnik | Russia |
| L85 | BiAnto Observatory, Lauria | Italy |
| L86 | Giordano Bruno Observatory, Brallo | Italy |
| L87 | Moonbase South Observatory, Hakos | Namibia |
| L88 | Stazione Astronomica Le Pleiadi, Pantane | Italy |
| L89 | PAO, Prato | Italy |
| L90 | ABObservatory, Rosarno | Italy |
| L91 | Antares MTM Observatory, S. Donato | Italy |
| L92 | San Costantino | Italy |
| L93 | Garraf Observatory, Sant Pere de Ribes | Spain |
| L94 | Observatorio MOMA, Oviedo | Spain |
| L95 | Observatorio Astronomico de Cartagena | Spain |
| L96 | ISON-Byurakan Observatory | Armenia |
| L97 | Castle Fields Observatory, Calne | England (UK) |
| L98 | La Sagra Observatory, Puebla de Don Fadrique | Spain |
| L99 | Novosilky | Ukraine |
| M00 | Viestikallio, Artjarvi | Finland |
| M01 | Weizmann Astrophysical Observatory | Israel |
| M02 | Astropriorat Observatory | Spain |
| M03 | Badalona Boreal | Spain |
| M04 | Pujalt Observatory, Barcelona | Spain |
| M05 | Observatoire de la Nine, Canens | France |
| M06 | PeLe's Observatory, Ager | Spain |
| M07 | Siek | Germany |
| M08 | CHON, Stekene | Belgium |
| M09 | Observatory Gromme - Oudsbergen | Belgium |
| M10 | CPF Observatory, St Vallier de Thiey | France |
| M11 | Novaastro Observatory, Banon | France |
| M12 | Puschino | Russia |
| M13 | Lucie Berger Observatory, Strasbourg | France |
| M14 | Schiaparelli Gallarate Station | Italy |
| M15 | Virgo Oservatory, Seveso | Italy |
| M16 | Osservatorio Il Coreggiolo | Italy |
| M17 | SN1572 Tycho Observatory, La Spezia | Italy |
| M18 | Koeditz | Germany |
| M19 | Osservatorio Explorer, Pula | Croatia |
| M20 | Polse di Cougnes Observatory, Zuglio | Italy |
| M21 | Schiaparelli Southern Observatory, Hakos | Namibia |
| M22 | ATLAS South Africa, Sutherland | South Africa |
| M23 | ELTE Gothard Observatory, Szombathely | Hungary |
| M24 | La Macchina del Tempo, Ardore Marina | Italy |
| M25 | Einarin Observatory, Tampere | Finland |
| M26 | Zen Observatory, Scandicci | Italy |
| M27 | Elijah Observatory, Lajatico | Italy |
| M28 | Lesedi Telescope-SAAO Observatory, Sutherland | South Africa |
| M29 | O.M.Ni.A. Observatory, Cesena | Italy |
| M30 | Zeta Aquarii Observatory, Brasov | Romania |
| M31 | Ursa Havaintokeskus, Artjarvi | Finland |
| M32 | Sunny Transcarpathian, Mukachevo | Ukraine |
| M33 | OWL-Net, Mitzpe Ramon | Israel |
| M34 | AGO70, Astronomical Observatory, Modra | Slovakia |
| M35 | PS Observatory, Parjol | Romania |
| M36 | Opicina, Trieste | Italy |
| M37 | Astronomsko drustvo Nanos, Ajdovscina | Slovenia |
| M38 | Harsona Observatory, Nyiregyhaza | Hungary |
| M39 | AUTH Observatory, Thessaloniki | Greece |
| M40 | OSTS-NRIAG, Kottamia | Egypt |
| M41 | Jeddah | Saudi Arabia |
| M42 | Emirates Observatory, Al Rahba | United Arab E |
| M43 | Al Sadeem Observatory, Abu Dhabi | United Arab E |
| M44 | Al-Khatim Observatory, Abu Dhabi | United Arab E |
| M45 | Starhopper Observatory, Sfantu Gheorghe | Romania |
| M46 | Althuraya Astronomy Center, Dubai | United Arab E |
| M47 | Sharjah Observatory, Sharjah | United Arab E |
| M48 | GAC - Via L. Sturzo Observatory, Catania | Italy |
| M49 | IAS Remote Observatory, Hakos | Namibia |
| M50 | Virtual Telescope Project, Manciano | Italy |
| M51 | Robert Mayer Sternwarte, Heilbronn | Germany |
| M52 | Sassari | Sardini (Italy) |
| M53 | CAS Observatory, Preetz | Germany |
| M54 | Observatoire Albireo de Biot | France |
| M55 | Luckystar Observatory, Vazec | Slovakia |
| M56 | Varedo | Italy |
| M57 | Wide-field Mufara Telescope, Isnello | Italy |
| M58 | VdS Remote Observatory, Hakos | Namibia |
| M59 | Rondchamp Observatory, Reconvilier | Switzerland |
| M60 | Virgil Observatory, Loiano | Italy |
| M61 | Observatory Moers Kapellen | Germany |
| M62 | Lajoux Observatory | Switzerland |
| M63 | RPF Observatory, Gagliano del Capo | Italy |
| M64 | Holbrook, Heathfield | England (UK) |
| M65 | Mustola Observatory, Lappeenranta | Finland |
| M66 | SNX-NET, Prodromos | Cyprus |
| M67 | Kolobov Observatory, Magnitogorsk | Russia |
| M68 | School 1502 Rooftop Obs., Moscow | Russia |
| M69 | Emirates Astronomical Observatory L.L.C | United Arab E |
| M70 | BOOTES-6, Bloemfontein | South Africa |
| M71 | AUTH Astronomical Station, Noesis | Greece |
| M72 | AUTH Astronomical Station, Cyprus | Cyprus |
| M73 | Eden Emirates Observatory, Abu Dhabi | United Arab E |
| M75 | Online observatory, Peschany | Russia |
| M77 | Mezmay Comet Search Center | Russia |
| M90 | Chervishevo | Russia |
| N27 | Omsk-Yogik Observatory | Russia |
| N30 | Zeds Astronomical Observatory, Lahore | Pakistan |
| N31 | Eden Astronomical Observatory, Lahore | Pakistan |
| N42 | Tien-Shan Astronomical Observatory | Kazakhstan |
| N43 | Plateau Observatory for Dome A, Kunlun Station | Antarctica |
| N44 | Shache Station, Langan Village | China |
| N50 | Himalayan Chandra Telescope, IAO, Hanle | India |
| N51 | GROWTH India Telescope, IAO, Hanle | India |
| N53 | International Liquid Mirror Telescope | India |
| N54 | Purple Mountain Observatory, Jiama'erdeng | China |
| N55 | Corona Borealis Observatory, Ngari, Tibet | China |
| N56 | Jiama'erdeng Tianwentai JIST project, Ali, Tibet | China |
| N57 | YLT, NAOC | China |
| N82 | Multa Observatory | Russia |
| N83 | LW-1, NAOC-Korla | China |
| N85 | Megrez-NAOC | China |
| N86 | Xingming Observatory-KATS, Nanshan | China |
| N87 | Nanshan Station, Xinjiang Observatory | China |
| N88 | Xingming Observatory #3, Nanshan | China |
| N89 | Xingming Observatory #2, Nanshan | China |
| N94 | Altay Astronomical Observatory | China |
| O02 | Galaxy Tibet YBJ Observatory,Yangbajing | China |
| O17 | Purple Mountain Observatory, Lenghu-1 | China |
| O18 | WFST, Lenghu | China |
| O37 | TRT-NEO, Chiangmai | Thailand |
| O38 | Purple Mountain Observatory, Dayao | China |
| O39 | BOOTES-4, Lijiang | China |
| O40 | Xingyuan, Daocheng | China |
| O41 | Choakanan Observatory, Lampang | Thailand |
| O42 | Gaomeigu Gemini Observatory, LiJiang | China |
| O43 | Observatori Negara, Langkawi | Malaysia |
| O44 | Lijiang Station, Yunnan Observatories | China |
| O45 | Yunnan-HK Observatory, Gaomeigu | China |
| O46 | Daocheng Glacier Observatory | China |
| O47 | Yunling Observatory, Yunnan | China |
| O48 | Purple Mountain Observatory, Yaoan (0.8-m) | China |
| O49 | Purple Mountain Observatory, Yaoan Station | China |
| O50 | Hin Hua Observatory, Klang | Malaysia |
| O51 | Akin Observatory, Rayong | Thailand |
| O52 | Astro820, Samut Prakan | Thailand |
| O53 | Pakchong, Nachonratchasima | Thailand |
| O54 | TSky Observatory, Chonburi | Thailand |
| O55 | Telok Kemang Observatory, Port Dickson | Malaysia |
| O56 | Jaichalad-Pailin Observatory | Thailand |
| O57 | ROP KKN Observatory | Thailand |
| O58 | SSTAC, Pak Chong | Thailand |
| O68 | LW-2, NAOC-Zhongwei | China |
| O72 | OWL-Net, Songino | Mongolia |
| O75 | ISON-Hureltogoot Observatory | Mongolia |
| O85 | LiShan Observatory, Lintong | China |
| P07 | Space Surveillance Telescope, HEH Station | Western Australia (Australia) |
| P13 | Baihuashan Observatory, Beijing | China |
| P14 | Nedlands Observatory, Perth | Western Australia (Australia) |
| P18 | Birch Forest Observatory, LaBaGouMen | China |
| P21 | 6R-AUS1, Youndegin | Western Australia (Australia) |
| P22 | LW-3, NAOC-Xinglong | China |
| P25 | Kinmen Educational Remote Observatory, Jincheng | China |
| P30 | Jiangnantianchi Observatory, Anji | China |
| P31 | Starlight Observatory, Tianhuangping | China |
| P34 | Lvye Observatory, Suzhou | China |
| P35 | Cuteip Remote Observatory, Changhua | Taiwan |
| P36 | ULTRA Observatory,Suzhou | China |
| P37 | HuiWen High School Observatory, Taichung City | Taiwan |
| P38 | Checheng Elementary School Observatory | Taiwan |
| P40 | Chinese Culture University, Taipei | Taiwan |
| P41 | Merak, NAOC | China |
| P48 | ASTEP, Concordia Station | Antarctica |
| P61 | Jilin Observatory | China |
| P62 | Jeonbuk Science High School Observatory | South Korea |
| P63 | GSA Observatory, Gwangju | South Korea |
| P64 | GSHS Observatory, Suwon | South Korea |
| P65 | OWL-Net, Daedeok | South Korea |
| P66 | Deokheung Optical Astronomy Observatory | South Korea |
| P67 | Kangwon National University Observatory | South Korea |
| P68 | DDSHS Biryong Observatory | South Korea |
| P69 | ChungBuk National University Observatory | South Korea |
| P71 | Miryang Arirang Astronomical Observatory | South Korea |
| P72 | OWL-Net, Mt. Bohyun | South Korea |
| P73 | BSH Byulsem Observatory, Busan | South Korea |
| P87 | Hirao Observatory, Yamaguchi | Japan |
| P93 | Space Tracking and Communications Center, JAXA | Japan |
| Q02 | Sakai Observatory, Osaka | Japan |
| Q06 | Tarui Observatory, Tarui | Japan |
| Q10 | Toyokawa Observatory | Japan |
| Q11 | Shinshiro | Japan |
| Q12 | Nagano Observatory | Japan |
| Q14 | Goto Astronomical Observatory in Yatsugatake | Japan |
| Q19 | Machida | Japan |
| Q20 | Swan Reach Imaging, Glenalta | South Australia (Australia) |
| Q21 | Southern Utsunomiya | Japan |
| Q22 | SNX-NET, Moorook | South Australia (Australia) |
| Q23 | Sukagawa | Japan |
| Q24 | Katori | Japan |
| Q33 | Nayoro Observatory, Hokkaido University | Japan |
| Q38 | Swan Hill | Victoria (Australia) |
| Q54 | Harlingten Telescope, Greenhill Observatory | Tasmania (Australia) |
| Q55 | SkyMapper, Siding Spring | New South Wales (Australia) |
| Q56 | Heaven's Mirror Observatory, Yass | New South Wales (Australia) |
| Q57 | Korea Microlensing Telescope Network-SSO | New South Wales (Australia) |
| Q58 | Siding Spring-LCO Clamshell #1 | New South Wales (Australia) |
| Q59 | Siding Spring-LCO Clamshell #2 | New South Wales (Australia) |
| Q60 | ISON-SSO Observatory, Siding Spring | New South Wales (Australia) |
| Q61 | PROMPT, Siding Spring | New South Wales (Australia) |
| Q62 | iTelescope Observatory, Siding Spring | New South Wales (Australia) |
| Q63 | Siding Spring-LCO A | New South Wales (Australia) |
| Q64 | Siding Spring-LCO B | New South Wales (Australia) |
| Q65 | Warrumbungle Observatory | New South Wales (Australia) |
| Q66 | Siding Spring-Janess-G, JAXA | New South Wales (Australia) |
| Q67 | JBL Observatory, Bathurst | New South Wales (Australia) |
| Q68 | Blue Mountains Observatory, Leura | New South Wales (Australia) |
| Q69 | Hazelbrook | New South Wales (Australia) |
| Q70 | Glenlee Observatory, Glenlee | Queensland (Australia) |
| Q71 | SNX-NET, Siding Spring | New South Wales (Australia) |
| Q73 | Buckthorn, Thornton | New South Wales (Australia) |
| Q78 | Woogaroo Observatory, Forest Lake | Queensland (Australia) |
| Q79 | Samford Valley Observatory | Queensland (Australia) |
| Q80 | Birkdale | Queensland (Australia) |
| Q81 | Caloundra West | Queensland (Australia) |
| R13 | GOTO North | Canary Island |
| R14 | VillaDeMazoElHoyo | Canary Island |
| R16 | Tafuriaste, La Orotava | Canary Island |
| R17 | ATLAS-TDO | Canary Island |
| R20 | LaMelira, Las Palmas de Gran Canaria | Canary Island |
| R44 | Metis Trevinca Skies | Spain |
| R45 | Tycho Brahe, Trevinca | Spain |
| R49 | Observatorio Villuercas-Navezuelas, Navezuelas | Spain |
| R50 | Obsservatorio astronomico Orion | Spain |
| R51 | Astrogredos Observatory, Arenas de San Pedro | Spain |
| R52 | Observatorio IES Al-Baytar, Benalmadena | Spain |
| R53 | Pinos, Alhaurin de la Torre | Spain |
| R56 | Scott Street Observatory, Lake Tekapo | New Zealand |
| R57 | Aorangi Iti Observatory, Lake Tekapo | New Zealand |
| R58 | Beverly-Begg Observatory, Dunedin | New Zealand |
| R59 | Camarasa Observatory, Astrocamp Nerpio | Spain |
| R60 | MonitorMyPlanet, Nerpio | Spain |
| R61 | Landete-Kea | Spain |
| R62 | lama'stro, Le Genest-Saint-Isle | France |
| R63 | Observatorio Sureste Estelar, Fuente Alamo | Spain |
| R64 | Steyning Observatory | England (UK) |
| R65 | R. F. Joyce Observatory, Christchurch | New Zealand |
| R66 | Mooray Observatory, Christchurch | New Zealand |
| R67 | Chinon Private Observatory, Chinon | France |
| R68 | Bourgeon Observatory | France |
| R69 | SAT01-Mntlouis sur Loire | France |
| R70 | WATCH, Beychac Et Caillau | France |
| R71 | Erchico, San Vicente Del Raspeig | Spain |
| R72 | RubiObservatory, Rubi | Spain |
| R73 | Observatoire de Tauxigny, Tauxigny | France |
| R76 | LEPTINA-ONE, Estinnes-au-val | Belgium |
| R77 | Observatoire de l'etoile qui rit | France |
| R78 | Crystal Lake Observatory, Ngutunui | New Zealand |
| R79 | Observatoire Hubert Reeves, Mars | France |
| R80 | Observatoire International de Beauvert | France |
| R83 | Observatoire Banon La Tuilerie, Banon | France |
| R85 | Telescope Leonard de Vinci, GAPRA, Antibes | France |
| R86 | Mont-Soleil, Saint-Imier | Switzerland |
| R87 | Observatoire de la Cote d'Azur | France |
| R88 | La Porte des Etoiles, Corgemont | Switzerland |
| R92 | Osterholz-Scharmbeck | Germany |
| R93 | Sanse Observatory, San Sebastiano Curone | Italy |
| R95 | Fiammetta Observatory, La Spezia | Italy |
| R97 | Baudenbach | Germany |
| R99 | Giuliano Betti Observatory, Firenze | Italy |
| S04 | Osservatorio Astronomico Narciso Spuntoni | Italy |
| S16 | ASI Matera Flyeye | Italy |
| S24 | Szilard Leo Observatory, Bujak | Hungary |
| S30 | Zenit, Hajduboszormeny | Hungary |
| S42 | Institute of Space Science Magurele | Romania |
| S43 | StarBlazer Observatory, Bucharest | Romania |
| S47 | AlfaStar Observatory, Alfatar | Bulgaria |
| S61 | Mykolaiv, 0.3m f/5 Telescope | Ukraine |
| S86 | Alamri astronomical observatory | Saudi Arabia |
| S89 | FASTAU, Astrofarm Astroverts | Russia |
| S93 | INASAN-Kislovodsk Observatory | Russia |
| T02 | SNX-NET, Wailuku | Hawaii (US) |
| T03 | Haleakala-LCO Clamshell #3 | Hawaii (US) |
| T04 | Haleakala-LCO OGG B #2 | Hawaii (US) |
| T05 | ATLAS-HKO, Haleakala | Hawaii (US) |
| T07 | ATLAS-MLO Auxiliary Camera, Mauna Loa | Hawaii (US) |
| T08 | ATLAS-MLO, Mauna Loa | Hawaii (US) |
| T09 | Subaru Telescope, Maunakea | Hawaii (US) |
| T10 | Submillimeter Array, Maunakea (SMA) | Hawaii (US) |
| T11 | United Kingdom Infrared Telescope, Maunakea | Hawaii (US) |
| T12 | University of Hawaii 88-inch telescope, Maunakea | Hawaii (US) |
| T13 | NASA Infrared Telescope Facility, Maunakea | Hawaii (US) |
| T14 | Canada-France-Hawaii Telescope, Maunakea | Hawaii (US) |
| T15 | Gemini North Observatory, Maunakea | Hawaii (US) |
| T16 | W. M. Keck Observatory, Keck 1, Maunakea | Hawaii (US) |
| T17 | W. M. Keck Observatory, Keck 2, Maunakea | Hawaii (US) |
| T35 | Astronomical Society of Tahiti | Tahiti |
| U52 | Shasta Valley Observatory, Grenada | California (US) |
| U53 | Murray Hill Observatory, Beaverton | Oregon (US) |
| U54 | Hume Observatory, Santa Rosa | California (US) |
| U55 | Golden Ears Observatory, Maple Ridge | British Columbia (Canada) |
| U56 | Palo Alto | California (US) |
| U57 | Black Mountain Observatory, Los Altos | California (US) |
| U62 | TransAstra TKO at SkiesAway | California (US) |
| U63 | Burnt Tree Hill Observatory, Cle Elum | Washington (US) |
| U64 | CWU-Lind Observatory, Ellensburg | Washington (US) |
| U65 | CWU Observatory, Ellensburg | Washington (US) |
| U67 | Jack C. Davis Observatory, Carson City | Nevada (US) |
| U68 | JPL SynTrack Robotic Telescope, Auberry | California (US) |
| U69 | iTelescope SRO Observatory, Auberry | California (US) |
| U70 | RASC Observatory, Alder Springs | California (US) |
| U71 | AHS Observatory, Castaic | California (US) |
| U72 | Tarzana | California (US) |
| U73 | Redondo Beach | California (US) |
| U74 | JPL SynTrack Robotic Telescope 2, Auberry | California (US) |
| U75 | Newport Beach | California (US) |
| U76 | Maury Lewin Observatory, Glendora | California (US) |
| U77 | Rani Observatory, San Diego | California (US) |
| U78 | Cedar Glen Observatory | California (US) |
| U79 | Cosmos Research Center, Encinitas | California (US) |
| U80 | CS3-DanHenge Observatory, Landers | California (US) |
| U81 | CS3-Trojan Station, Landers | California (US) |
| U82 | CS3-Palmer Divide Station, Landers | California (US) |
| U83 | Mount Laguna Observatory | California (US) |
| U86 | BOOTES-5, Bajo California | Mexico |
| U92 | Astrottica Network USA2, Pie Town | New Mexico (US) |
| U93 | Skygems Dreamscope Utah, Beryl Junction | Utah (US) |
| U94 | iTelescope Observatory, Beryl Junction | Utah (US) |
| U95 | USA1/HCRO, Pie Town | New Mexico (US) |
| U96 | Athabasca University Geophysical Observatory | Alberta (Canada) |
| U97 | JPL SynTrack Robotic Telescope 3, Flagstaff | Arizona (US) |
| U98 | NAC Observatory, Benson | Arizona (US) |
| U99 | BCC Observatory, Black Canyon City | Arizona (US) |
| V00 | Kitt Peak-Bok | Arizona (US) |
| V01 | Mountainville Observatory, Alpine | Utah (US) |
| V02 | Command Module, Tempe | Arizona (US) |
| V03 | Big Water | Utah (US) |
| V04 | FRoST, Anderson Mesa | Arizona (US) |
| V05 | Rusty Mountain Observatory, Gold Canyon | Arizona (US) |
| V06 | Catalina Sky Survey-Kuiper | Arizona (US) |
| V07 | Whipple Observatory, Mount Hopkins-PAIRITEL | Arizona (US) |
| V08 | Mountain Creek Ranch, Vail | Arizona (US) |
| V09 | Moka Observatory, Benson | Arizona (US) |
| V10 | Sierra Sinagua Observatory, Flagstaff | Arizona (US) |
| V11 | Saguaro Observatory, Tucson | Arizona (US) |
| V12 | Elgin | Arizona (US) |
| V13 | Little Moose Observatory, Timber Lakes | Utah (US) |
| V14 | Moose Springs Observatory, Timber Lakes | Utah (US) |
| V15 | OWL-Net, Mt. Lemmon | Arizona (US) |
| V16 | Dark Sky New Mexico, Animas | New Mexico (US) |
| V17 | Leo Observatory, Tucson | Arizona (US) |
| V18 | MASTER-OAGH Observatory, Sonora | Mexico |
| V19 | Whiskey Creek Observatory | New Mexico (US) |
| V20 | Killer Rocks Observatory, Pie Town | New Mexico (US) |
| V21 | Cewanee Observatory at DSNM | New Mexico (US) |
| V22 | Insight Remote Observatory, Pie Town | New Mexico (US) |
| V23 | FOAH Observatory, Magdalena | New Mexico (US) |
| V24 | Sonoran Desert Skies Observatory, Pearce | Arizona (US) |
| V25 | Tortugas Mountain Observatory, Las Cruces | New Mexico (US) |
| V26 | UAS-ISON Observatory, Cosala | Mexico |
| V27 | North Mesa Observatory, Los Alamos | New Mexico (US) |
| V28 | Deep Sky West Observatory, Rowe | New Mexico (US) |
| V29 | Tzec Maun Cloudcroft Facility | New Mexico (US) |
| V30 | Heaven on Earth Observatory, Mayhill | New Mexico (US) |
| V31 | Hazardous Observatory, Mayhill | New Mexico (US) |
| V32 | Canvas View New Mexico Skies, Mayhill | New Mexico (US) |
| V33 | Finlaystone Observatory, Angel Fire | New Mexico (US) |
| V34 | Baker Observatory, Black Forest | Colorado (US) |
| V35 | Deep Sky Observatory Collaborative, Pier 5 | Texas (US) |
| V36 | The Ranch Observatory, Lakewood | New Mexico (US) |
| V37 | McDonald Observatory-LCO ELP | Texas (US) |
| V38 | McDonald Observatory-LCO ELP Aqawan A #1 | Texas (US) |
| V39 | McDonald Observatory-LCO ELP B | Texas (US) |
| V40 | Divine Creation Observatory, Fort Davis | Texas (US) |
| V41 | Rapid City | South Dakota (US) |
| V42 | Dimension Point, Mayhill | New Mexico (US) |
| V43 | Chiricahua Skies Observatory, Sunizona | Arizona (US) |
| V44 | Coyote Watcher, Pie Town | New Mexico (US) |
| V45 | McDonald Observatory-LCO ELP Aqawan B #1 | Texas (US) |
| V46 | Walnut Park Observatory, Los Alamos | New Mexico (US) |
| V47 | McDonald Observatory-LCO ELP Aqawan B #2 | Texas (US) |
| V48 | TransAstra at Winer | Arizona (US) |
| V54 | Observatoire LAURIER, El Marques | Mexico |
| V55 | The Gikem Observatory, Rockwood | Texas (US) |
| V56 | Stonehenge Observatory, Novice | Texas (US) |
| V57 | Starfront Observatories, Rockwood | Texas (US) |
| V58 | Medina Dome, Medina | Texas (US) |
| V59 | Millwood Observatory, Comfort | Texas (US) |
| V60 | Putman Mountain Observatory | Texas (US) |
| V61 | Shed of Science South, Pontotoc | Texas (US) |
| V62 | Live Oak Observatory, Pontotoc | Texas (US) |
| V63 | Tara Observatory, Cherokee | Texas (US) |
| V70 | Starry Night Observatory, Columbus | Texas (US) |
| V72 | JDP Observatory, Omaha | Nebraska (US) |
| V74 | Katy Observatory, Katy | Texas (US) |
| V75 | Live Oak Observatory, Lake Jackson | Texas (US) |
| V78 | Spirit Marsh Observatory. Sauk Centre | Minnesota (US) |
| V81 | Fayetteville | Arkansas (US) |
| V83 | Rolling Hills Observatory, Warrensburg | Missouri (US) |
| V86 | Rattle Snake Observatory, Sedalia | Missouri (US) |
| V88 | River Ridge Observatory, Conway | Arkansas (US) |
| V92 | White County Observatory, Searcy | Arkansas (US) |
| V93 | Pin Oak Observatory, Fort Madison | Iowa (US) |
| V94 | Cherokeeridge Observatory, Fort Madison | Iowa (US) |
| W04 | Mark Evans Observatory, Bloomington | Illinois (US) |
| W05 | Tree Gate Farm Observatory, Starkville | Mississipp (US) |
| W08 | Jimginny Observatory, Naperville | Illinois (US) |
| W09 | Willowed Plains Observatory, Manteno | Illinois (US) |
| W11 | Northwest Indiana Robotic Telescope, Lowell | Indiana (US) |
| W13 | Star Quarry Observatory, Bedford | Indiana (US) |
| W14 | Harvest | Alabama (US) |
| W15 | Wayne Observatory, Franklin | Tennessee (US) |
| W16 | Pleasant Groves Observatory | Alabama (US) |
| W17 | Arrowhead, Sheridan | Indiana (US) |
| W18 | Red Fox Observatory, Pendleton | Indiana (US) |
| W19 | Kalamazoo | Michigan (US) |
| W22 | WestRock Observatory, Columbus | Georgia (US) |
| W23 | Hevonen Farm Observatory, Oxford | Ohio (US) |
| W24 | Shamrock Banks Observatory, Clare | Michigan (US) |
| W25 | RMS Observatory, Cincinnati | Ohio (US) |
| W26 | Starpool Observatory, Hampstead | Maryland (US) |
| W27 | RCNS, New Milford | Connecticu (US) |
| W28 | Ex Nihilo Observatory, Winder | Georgia (US) |
| W29 | Adena Brook Observatory, Columbus | Ohio (US) |
| W30 | Georgia College Observatory, Milledgeville | Georgia (US) |
| W31 | Deerlick Observatory, Crawfordville | Georgia (US) |
| W32 | Crawfordville Observatory | Georgia (US) |
| W33 | Transit Dreams Observatory, Campobello | South Carolina (US) |
| W34 | Squirrel Valley Observatory, Columbus | North Carolina (US) |
| W35 | Buffalo Creek Observatory, Nahunta | Georgia (US) |
| W36 | EliLauren Observatory, Neilltown | Pennsylvan (US) |
| W37 | Transit Dreams Observatory-North, Hamburg NY | New York (US) |
| W38 | Dark Sky Observatory, Boone | North Carolina (US) |
| W39 | Robinson Observatory | Florida (US) |
| W40 | Hampden-Sydney Observatory | Virginia (US) |
| W41 | Anderson Observatory | Virginia (US) |
| W42 | Mind's Eye Observatory, Vero Beach | Florida (US) |
| W43 | MT_Hope_Cavu, Otisville | New York (US) |
| W44 | Duo Ursi de Saltu, Scarsdale | New York (US) |
| W45 | Benito Loyola Observatory, Virginia Beach | Virginia (US) |
| W46 | Foxfire Village | North Carolina (US) |
| W47 | SNX-NET, Rio Hurtado | Chile |
| W48 | BKH Observatory, Chapel Hill | North Carolina (US) |
| W49 | CBA-MM Observatory, Mountain Meadows | West Virginia (US) |
| W50 | Apex | North Carolina (US) |
| W51 | Custer Institute and Observatory | New York (US) |
| W52 | US Naval Academy Hopper Hall Observatory | Maryland (US) |
| W53 | Hagerstown | Maryland (US) |
| W54 | Mark Slade Remote Observatory, Wilderness | Virginia (US) |
| W55 | Natelli Observatory, Frederick | Maryland (US) |
| W56 | Pineapple Observatory, Frederick | Maryland (US) |
| W57 | ESA TBT La Silla Observatory | Chile |
| W58 | ALPHA Observatory, South Laurel | Maryland (US) |
| W59 | The Dark Side Observatory, Weatherly | Pennsylvan (US) |
| W60 | AstroExplor Observatory, Tinjaca | Colombia |
| W61 | Leeside Observatory, Elgin | Ontario (Canada) |
| W62 | Comet Hunter Observatory2, New Ringgold | Pennsylvan (US) |
| W63 | Observatorio Astronomico UTP, Pereira | Colombia |
| W64 | Red Lion Observatory, Southampton Twsp | New Jersey (US) |
| W65 | Observatoire GOZ, Montpellier | Quebec (Canada) |
| W66 | SVH Observatory, Blairstown | New Jersey (US) |
| W67 | Paul Robinson Observatory, Voorhees State Park | NJersey (US) |
| W68 | ATLAS Chile, Rio Hurtado | Chile |
| W69 | OLPH Observatory, Brooklyn | New York (US) |
| W70 | Loose Goose Observatory, Saint-Jerome | Quebec (Canada) |
| W71 | Rand II Observatory, Lake Placid | New York (US) |
| W72 | Trumbull Observatory, Trumbull | Connecticu (US) |
| W73 | Observatorio Astronomico de Moquegua, Carumas | Peru |
| W74 | Danish Telescope, La Silla | Chile |
| W75 | SPECULOOS-South Observatory, Paranal | Chile |
| W76 | CHILESCOPE Observatory, Rio Hurtado | Chile |
| W77 | Skyledge Observatory, Killingworth | Connecticu (US) |
| W78 | Clay Telescope, Harvard University | Massachuse (US) |
| W79 | Cerro Tololo-LCO Aqawan B #1 | Chile |
| W80 | Westwood | Massachuse (US) |
| W81 | Nebula Knoll Observatory, East Wakefield | New Hampsh (US) |
| W82 | Mendel Observatory, Merrimack College | Massachuse (US) |
| W83 | Whitin Observatory, Wellesley | Massachuse (US) |
| W84 | Cerro Tololo-DECam | Chile |
| W85 | Cerro Tololo-LCO A | Chile |
| W86 | Cerro Tololo-LCO B | Chile |
| W87 | Cerro Tololo-LCO C | Chile |
| W88 | Slooh.com Chile Observatory, La Dehesa | Chile |
| W89 | Cerro Tololo-LCO Aqawan A #1 | Chile |
| W90 | Phillips Exeter Academy Grainger Observatory | New Hampsh (US) |
| W91 | VHS-VISTA, Cerro Paranal | Chile |
| W92 | MASTER-OAFA Observatory, San Juan | Argentina |
| W93 | Korea Microlensing Telescope Network-CTIO | Chile |
| W94 | MAPS, San Pedro de Atacama | Chile |
| W95 | Observatorio Panameno, San Pedro de Atacama | Chile |
| W96 | CAO, San Pedro de Atacama (since 2013) | Chile |
| W97 | Atacama Desert Observatory, San Pedro de Atacama | Chile |
| W98 | Polonia Observatory, San Pedro de Atacama | Chile |
| W99 | SON, San Pedro de Atacama Station | Chile |
| X00 | Observatorio Astronomico Tolar | Argentina |
| X01 | Observatory Hurtado, El Sauce | Chile |
| X02 | Telescope Live, El Sauce | Chile |
| X03 | Observatoire SADR, Poroto | Chile |
| X04 | MCD Observatory, Saint-Anaclet | Quebec (Canada) |
| X05 | Simonyi Survey Telescope, Rubin Observatory | Chile |
| X06 | Skygems Chile, Rio Hurtado | Chile |
| X07 | iTelescope Deep Sky Chile, Rio Hurtado | Chile |
| X08 | ShAO Chile station, El Sauce | Chile |
| X09 | Deep Random Survey, Rio Hurtado | Chile |
| X10 | OVTLN, San Pedro de Atacama | Chile |
| X11 | VLT Survey Telescope, Paranal | Chile |
| X12 | Observatorio Los Cabezones | Argentina |
| X13 | Observatorio Remoto Bosque Alegre | Argentina |
| X14 | Observatorio Orbis Tertius, Cordoba | Argentina |
| X15 | ABYO, San Pedro de Atacama | Chile |
| X16 | Astronomia Sigma Octante, Cochabamba | Bolivia |
| X17 | BlackGEM | Chile |
| X18 | 6R-POL2, San Pedro de Atacama | Chile |
| X19 | Santel Observatory, El Leoncito | Argentina |
| X20 | BOOTES-7, San Pedro Atacama | Chile |
| X21 | RoSaMund Obervatory - DSC, Rio Hurtado | Chile |
| X22 | BTN-1, Deep Sky Chile | Chile |
| X23 | OVTLN2, San Pedro de Atacama | Chile |
| X24 | Observatorio Desierto Cosmico, Atacama | Chile |
| X25 | UBC Southern Observatory | Chile |
| X26 | NAOS, Alta Gracia | Argentina |
| X29 | Observatorio Astronomico Municipal de Funes | Argentina |
| X31 | Galileo Galilei Observatory, Oro Verde | Argentina |
| X33 | OARU, Manaus | Brazil |
| X38 | Observatorio Pueyrredon, La Lonja | Argentina |
| X39 | Observatorio Antares, Pilar | Argentina |
| X40 | Cielos de Banfield, Banfield | Argentina |
| X41 | Observatorio Proton-Proton, Longchamps | Argentina |
| X50 | Observatorio Astronomico de Montevideo | Uruguay |
| X57 | Polo Astronomico CMF,Foz do Iguacu | Brazil |
| X60 | Guaraciaba Observatory | Brazil |
| X70 | Observatorio OATU, Tupi Paulista | Brazil |
| X72 | Waccobs, Sao Leopoldo | Brazil |
| X74 | Observatorio Campo dos Amarais | Brazil |
| X76 | SUN Observatory, Redencao | Brazil |
| X77 | Centro Astron. Nevoeiro, Antonio Olinto | Brazil |
| X86 | Ottoservatorio, Tatui | Brazil |
| X87 | Dogsheaven Observatory, Brasilia | Brazil |
| X88 | Observatorio Adhara, Sorocaba | Brazil |
| X89 | Rocca Observatory, Brasilia | Brazil |
| X90 | Carina Observatory, Brasilia | Brazil |
| X91 | Orion-Colesanti observatory, Mairinque | Brazil |
| X93 | Munhoz Observatory | Brazil |
| Y00 | SONEAR Observatory, Oliveira | Brazil |
| Y01 | SONEAR 2 Observatory, Belo Horizonte | Brazil |
| Y05 | SONEAR Wykrota-CEAMIG, Serra da Piedade | Brazil |
| Y16 | ROCG, Campos dos Goytacazes | Brazil |
| Y28 | OASI, Nova Itacuruba | Brazil |
| Y40 | Discovery Observatory, Caruaru | Brazil |
| Y63 | SNX-NET, Oukaimeden | Morocco |
| Y64 | Transient Survey Telescope (TST), Teide | Canary Island |
| Y65 | Two-meter Twin Telescope, TTT1 | Canary Island |
| Y66 | Two-meter Twin Telescope, TTT2 | Canary Island |
| Y67 | High Atlas Window to the Kosmos,Oukaimeden | Morocco |
| Y68 | Two-meter Twin Telescope, TTT3 | Canary Island |
| Y70 | ApolloIV5, Fregenal de la Sierra | Spain |
| Y71 | Makroskooppi, Fregenal de la Sierra | Spain |
| Y75 | Abraham Zacut, Salamanca | Spain |
| Y76 | Observatorio NovaCanet, Canet de Berenguer | Spain |
| Y77 | Cotos de Monterrey, Venturada | Spain |
| Y78 | Tros Alt | Spain |
| Y79 | Observatoire de la grande vallee | France |
| Y80 | Brenehuen, Grand-Champ | France |
| Y81 | Forthimage, Edinburgh | Scotland (UK) |
| Y82 | LPMR Observatory, Broad Chalke | England (UK) |
| Y83 | Observatorio Arcosur, Zaragoza | Spain |
| Y84 | Observatoire de Bretagne | France |
| Y85 | Magalofes Observatory, Fene | Spain |
| Y86 | Observatorio de Seron | Spain |
| Y87 | Trevinca Skies-Amalthea, Trevinca | Spain |
| Y88 | ASERO, Valdin | Spain |
| Y89 | Proxima Centauri Observatory, Valdin | Spain |
| Y90 | Observatorio ESTELIA, Ladines | Spain |
| Y91 | Ras Algethi, Ronda | Spain |
| Y92 | JD Cassini, Piconcillo | Spain |
| Y93 | Observatorio Azahar, Valoria la Buena | Spain |
| Y94 | LCB Lugueros observatory, Valdelugueros | Spain |
| Y95 | Pradillos Ferez | Spain |
| Y96 | Observatorio de Vega del Codorno | Spain |
| Y97 | Bommes Observatory, Bommes | France |
| Y98 | Southside Observatory, Steeple Aston | England (UK) |
| Y99 | Observatorio del Lucero del Alba | Spain |
| Z00 | BOOTES-1, Mazagon | Spain |
| Z01 | OWL-Net, Oukaimeden | Morocco |
| Z02 | HAO observatory, Oukaimeden | Morocco |
| Z03 | Rio Cofio, Robledo de Chavela | Spain |
| Z04 | MAO, Ain Laqsab | Morocco |
| Z05 | Observatorio Horus, Cartama | Spain |
| Z06 | Marina Sky, Nerpio | Spain |
| Z07 | Ad Astra Sangos Observatory, Alhendin | Spain |
| Z08 | Telescope Live, Oria | Spain |
| Z09 | Old Orchard Observatory, Fiddington | England (UK) |
| Z10 | PGC, Fregenal de la Sierra | Spain |
| Z11 | Appledorne Observatory, Farnsfield | England (UK) |
| Z12 | La Romaneta, Monovar | Spain |
| Z13 | Observatorio AGP GUAM 4, Malaga | Spain |
| Z14 | ART, Fregenal de la Sierra | Spain |
| Z15 | Southwater | England (UK) |
| Z16 | Asociacion Astronomica de Cartagena | Spain |
| Z17 | Tenerife-LCO Aqawan A #2 | Canary Island |
| Z18 | Gran Telescopio Canarias, Roque de los Muchachos | Canary Island |
| Z19 | La Palma-TNG | Canary Island |
| Z20 | La Palma-MERCATOR | Canary Island |
| Z21 | Tenerife-LCO Aqawan A #1 | Canary Island |
| Z22 | MASTER-IAC Observatory, Tenerife | Canary Island |
| Z23 | Nordic Optical Telescope, La Palma | Canary Island |
| Z24 | Tenerife Observatory-LCO B, Tenerife | Canary Island |
| Z25 | Artemis Observatory, Teide | Canary Island |
| Z26 | Observatorio Astronomico Arcangel, Las Zocas | Canary Island |
| Z27 | Observatorio Coralito, La Laguna | Canary Island |
| Z28 | Northern Skygems Observatory, Nerpio | Spain |
| Z29 | Observatorio Astronomico Sobradillo | Spain |
| Z30 | Glyn Marsh Observatory, Douglas | Isle of Ma (UK) |
| Z31 | Tenerife Observatory-LCO A, Tenerife | Canary Island |
| Z32 | Observatorio Astrofisico de Javalambre | Spain |
| Z33 | 6ROADS Observatory 2, Nerpio | Spain |
| Z34 | NNHS Drummonds Observatory | England (UK) |
| Z35 | OAO University Observatory Station Aras | Spain |
| Z36 | Cancelada | Spain |
| Z37 | Northolt Branch Observatory 3, Blandford Forum | England (UK) |
| Z38 | Picoto Observatory, Leiria | Portugal |
| Z39 | Observatorio Costa Teguise | Canary Island |
| Z40 | El Manzanillo Observatory, Puerto de la Torre | Spain |
| Z41 | Irydeo Observatory, Camarma de Esteruelas | Spain |
| Z42 | Rushay Farm Observatory, Sturminster Newton | England (UK) |
| Z43 | Landehen | France |
| Z44 | Observatorio Terminus, A Coruna | Spain |
| Z45 | Cosmos Observatory, Marbella | Spain |
| Z46 | Cardiff | Wales (UK) |
| Z47 | Runcorn | England (UK) |
| Z48 | Northolt Branch Observatory 2, Shepherd's Bush | England (UK) |
| Z49 | Alston Observatory | England (UK) |
| Z50 | Mazariegos | Spain |
| Z51 | Anunaki Observatory, Rivas Vaciamadrid | Spain |
| Z52 | The Studios Observatory, Grantham | England (UK) |
| Z53 | TRAPPIST-North, Oukaimeden | Morocco |
| Z54 | Greenmoor Observatory, Woodcote | England (UK) |
| Z55 | Uraniborg Observatory, Ecija | Spain |
| Z56 | Knocknaboola | Ireland |
| Z57 | Observatorio Zuben, Alhaurin de la Torre | Spain |
| Z58 | ESA TBT Cebreros Observatory | Spain |
| Z59 | Chelford Observatory | England (UK) |
| Z60 | Observatorio Zaldibia | Spain |
| Z61 | Montecanal Observatory, Zaragoza | Spain |
| Z62 | Observatorio Forcarei | Spain |
| Z63 | Skybor Observatory, Borja | Spain |
| Z64 | Observatorio el Miron del Cielo | Spain |
| Z65 | Observatorio Astronomico Corgas | Spain |
| Z66 | DeSS Deimos Sky Survey, Niefla Mountain | Spain |
| Z67 | Dunboyne Castle Observatory | Ireland |
| Z68 | Observatorio Torreaguila, Barbano | Spain |
| Z69 | Observatorio Mazagon Huelva | Spain |
| Z70 | Ponferrada | Spain |
| Z71 | Observatorio Norba Caesarina, Aldea Moret | Spain |
| Z72 | Cademuir Observatory, Dalkey | Ireland |
| Z73 | Observatorio Nuevos Horizontes, Camas | Spain |
| Z74 | Amanecer de Arrakis | Spain |
| Z75 | Observatorio Sirius, Las Lomas | Spain |
| Z76 | Observatorio Carda, Villaviciosa | Spain |
| Z77 | Osuna | Spain |
| Z78 | Arroyo Observatory, Arroyo Hurtado | Spain |
| Z79 | Calar Alto TNO Survey | Spain |
| Z80 | Northolt Branch Observatory | England (UK) |
| Z81 | Observatorio Estrella de Mar | Spain |
| Z82 | BOOTES-2 Observatory, Algarrobo | Spain |
| Z83 | Chicharronian 3C Observatory, Tres Cantos | Spain |
| Z84 | Calar Alto-Schmidt | Spain |
| Z85 | Observatorio Sierra Contraviesa | Spain |
| Z86 | St. Mellons | Wales (UK) |
| Z87 | Stanley Laver Observatory, Pontesbury | England (UK) |
| Z88 | Fosseway Observatory, Stratton-on-the-Fosse | England (UK) |
| Z89 | Macclesfield | England (UK) |
| Z90 | Albox | Spain |
| Z91 | Curdridge | England (UK) |
| Z92 | Almalex Observatory, Leeds | England (UK) |
| Z93 | Observatorio Polop, Alicante | Spain |
| Z94 | Kempshott | England (UK) |
| Z95 | Astronomia Para Todos Remote Observatory | Spain |
| Z96 | Observatorio Cesaraugusto | Spain |
| Z97 | OPERA Observatory, Saint Palais | France |
| Z98 | Observatorio TRZ, Betera | Spain |
| Z99 | Clixby Observatory, Cleethorpes | England (UK) |