Berikut ini daftar kode observatorium:[1]
- 000 Royal Observatory, Greenwich United Kingdom ENG Greenwich
- 001 Isaac Roberts' Observatory United Kingdom ENG Crowborough
- 002 Rayleigh Observatory, Chelmsford borough, Essex United Kingdom ENG Rayleigh
- 003 Montpellier Observatory (Observatoire de la Babote; Montpellier Babote Observatory) France Occ Montpellier
- 004 Toulouse Observatory France Occ Toulouse
- 005 Paris Observatory (Observatoire de Paris; Observatoire de Paris-Meudon) France IDF Meudon
- 006 Fabra Observatory (Observatori Fabra) Spain CT Fabra Observatory, Barcelona
- 007 Paris Observatory (Observatoire de Paris; Observatoire de Paris-Meudon) France IDF Paris
- 008 Algiers Observatory (Centre de Recherche en Astronomie Astrophysique et Géophysique) Algeria - Algiers-Bouzareah
- 009 Uecht Observatory (Sternwarte Uecht, Solar Observatory at Uecht) Switzerland SWG Bern-Uecht
- 010 CERGA Observatory (Centre de recherches en géodynamique et astrométrie) [2] France PACA Caussols
- 011 Wetzikon Observatory (Sternwarte Wetzikon) Switzerland SWG Wetzikon
- 012 Royal Observatory of Belgium (Uccle Observatory; Observatoire Royal de Belgique; Koninklijke Sterrenwacht van België) Belgium BCR Uccle
Wetzikon Observatory (Sternwarte Wetzikon) Switzerland SWG Wetzikon
- 013 Leiden Observatory (Sterrewacht Leiden) Netherlands Zuid Holland Leiden
- 014 Marseille Observatory France PACA Marseille
- 015 Sonnenborgh Observatory Netherlands Utrecht Utrecht
- 016 Besançon Astronomical Observatory (Observatoire de Besançon) France BFC Besançon
- 017 Hoher List Observatory (Observatorium Hoher List) Germany RP Hoher List
- 018 Düsseldorf-Bilk Observatory (Sternwarte Bilk) Germany NRW Düsseldorf-Bilk
- 019 Neuchâtel Observatory Switzerland SWF Neuchatel
- 020 Nice Observatory (Observatoire de Nice); observer: Matthieu Conjat [3]: 21 France PACA Nice
- 021 Karlsruhe Observatory (Sternwarte Karlsruhe) Germany BW Karlsruhe
- 022 Observatory of Turin (Pino Torinese; Osservatorio Astronomico di Torino) Italy P Pino Torinese
- 023 Wiesbaden Observatory (Sternwarte Wiesbaden) Germany HE Wiesbaden
- 024 Heidelberg-Königstuhl State Observatory (Heidelberg Observatory; Landessternwarte Heidelberg-Königstuhl) Germany BW Heidelberg-Konigstuhl
- 025 Stuttgart Observatory Germany BW Stuttgart
- 026 Zimmerwald Observatory (Observatorium Zimmerwald) Switzerland SWG Bern-Zimmerwald
- 027 Brera Astronomical Observatory (Osservatorio Astronomico di Brera) Italy Lo Milan
- 028 Würzburg Observatory (Sternwarte der Universität Würzburg) Germany FB Würzburg
- 029 Hamburg Observatory (Bergedorf Observatory; Hamburger Sternwarte) Germany H Hamburg-Bergedorf
- 030 Arcetri Observatory (Osservatorio Astrofisico di Arcetri) Italy Tu Arcetri Observatory, Florence
- 031 Sonneberg Observatory Germany TH Sonneberg
- 032 Jena Observatory (Astrophysikalisches Institut und Universitäts-Sternwarte Jena) Germany TH Jena
- 033 Karl Schwarzschild Observatory (Karl-Schwarzschild-Observatorium) Germany TH Karl Schwarzschild Observatory, Tautenburg
- 034 Monte Mario Observatory (Osservatorio Astronomico di Roma Sede di Monte Mario) Italy La Monte Mario Observatory, Rome
- 035 Østervold Observatory (Copenhagen University Observatory; Københavns Universitet Astronomisk Observatorium) Denmark - Copenhagen
- 036 Vatican Observatory (Specola Vaticana) Vatican City - Castel Gandolfo
- 037 Collurania-Teramo Observatory (Osservatorio Astronomico di Collurania-Teramo) Italy Ab Collurania Observatory, Teramo
- 038 Astronomical Observatory of Trieste (Osservatorio Astronomico di Trieste) Italy F Trieste
- 039 Lund Observatory (Lunds Universitet Institutionen för astronomi)
- 040 Lohrmann Observatory Germany SN Dresden University of Technology
- 041 Innsbruck Observatory Austria Ty Innsbruck
- 042 Einstein Tower Germany BB Potsdam
- 043 Asiago Astrophysical Observatory (Osservatorio Astrofisico di Asiago) Italy V Asiago Astrophysical Observatory, Padua
- 044 Astronomical Observatory of Capodimonte (Osservatorio Astronomico di Capodimonte) Italy Cam Capodimonte Observatory, Naples
- 045 Vienna Observatory (since 1879) (Universitäts-Sternwarte Wien) Austria Vi Vienna (since 1879)
- 046 Kleť Observatory, České Budějovice (Hvězdárna Kleť) Czech Republic JC Kleť Observatory, České Budějovice
- 047 Poznań Observatory (Obserwatorium Astronomiczne Uniwersytet im. Adama Mickiewicza w Poznaniu) Poland WV Poznań
- 048 Hradec Králové Observatory (Hvězdárna Hradec Králové) Czech Republic Hradec Králové Hradec Králové
- 049 Kvistaberg Observatory Sweden Up Uppsala-Kvistaberg
- 050 Stockholm Observatory (before 1931) (Stockholms observatorium) Sweden Sö Stockholm (before 1931)
- 051 Royal Observatory, Cape of Good Hope South Africa WC Cape
- 052 Stockholm Observatory (since 1931) (Saltsjöbaden Observatory) Sweden Sö Stockholm-Saltsjobaden
- 053 Konkoly Observatory (Konkoly Obszervatórium) Hungary Budapest Konkoly Observatory, Budapest (since 1934)
- 054 Brorfelde Observatory (Brorfelde Observatoriet) Denmark - Brorfelde
- 055 Kraków Observatory Poland LPV Cracow
- 056 Skalnaté pleso Observatory (Observatórium Skalnaté pleso) Slovakia Prešov Skalnate Pleso
- 057 Belgrade Observatory Serbia - Belgrade