| Acronym | Sense | Language | Topics |
|---|---|---|---|
| ArBei | Astrophysics Reports Publications of the Beijing Astronomical Observatory | In English | → Serial publications, periodicals → Astronomy → China |
| CamRe | Cambridge Observatories Reprints | In English | → Serial publications, periodicals → Astronomy → United Kingdom |
| CGRO | Compton Gamma-Ray Observatory | In English | |
| CoCam | Contributions from the Cambridge Observatory England | In English | → Serial publications, periodicals → Astronomy → United Kingdom |
| CoLon | Communications of the University of London Observatory | In English | → Serial publications, periodicals → Astronomy → United Kingdom |
| CTIO | Cerro Tololo Inter-American Observatory (www.ctio.noao.edu/noao/) | In English | |
| ESO | European Southern Observatory (https://www.eso.org/) | In English | |
| GRO | Gamma Ray Observatory | In English | → Astronautics |
| HEAO | High Energy Astronomical Observatory | In English | → Astronautics |
| HESS | High Energy Stereoscopic System | In English | |
| HRSO | High-Resolution Solar Observatory | In English | → Solar system |
| IACT | Imaging Atmospheric Cherenkov Telescope | In English | |
| IORP | Imperial Observatório do Rio de Janeiro | In Portuguese | → Serial publications, periodicals |
| ISO | Imaging Spectrometic Observatory | In English | → Analytical chemistry |
| KPNO | Kitt Peak National Observatory | In English | |
| LDEO | Lamont-Doherty Earth Observatory (https://www.ldeo.columbia.edu/) | In English | |
| LRO | Large Radio Observatory | In English | |
| LSO | Large Solar Observatory | In English | → Solar system |
| MOSPO | Mobile Satellite Photometric Observatory | In English | → Astronautics |
| NAOJ | National Astronomical Observatory of Japan (https://www.nao.ac.jp/) | In English | → Japan |
| NOAO | National Optical Astronomy Observatories | In English | |
| NSO | National Solar Observatory | In English | → Solar system |
| OAC | Observatorio Astronómico de Córdoba (http://http://oac.unc.edu.ar/) | In Spanish | → Argentina |
| OAO | Orbital Astronomical Observatory | In English | → Astronautics |
| OCA | Observatoire de la Côte d'Azur (https://www.oca.eu/fr/) | In French | → France |
| OHP | Observatoire de Haute-Provence (www.obs-hp.fr) | In French | → France |
| OMP | Observatoire Midi-Pyrénées (http://www.obs-mip.fr/) | In French | → Earth sciences → France |
| ONA | Observatorio Nacional Argentino | In Spanish | → Argentina |
| OSO | Orbiting Solar Observatory | In English | → Astronautics → Solar system |
| PBeiO | Publications of the Beijing Astronomical Observatory | In English | → Serial publications, periodicals → Astronomy → China |
| SAOCo | Smithsonian Astrophysical Observatory - Contributions to Astrophysics | In English | → Serial publications, periodicals → Astronomy → United States |
| SOHO | Solar and Heliospheric Observatory | In English | → Solar system |
| STEREO | Solar TErrestrial RElations Observatory | In English | → Solar system → Earth sciences |
| STO | Solar Terrestrial Observatory | In English | → Solar system |
| VERITAS | Very Energetic Radiation Imaging Telescope Array System | In English | |
| VHO | Virtual Heliospheric Observatory (http://https://vho.gsfc.nasa.gov/) | In English | → Data → Solar system |
| WasOA | Washburn Observatory Astrophysics | In English | → Serial publications, periodicals → Astronomy → United States |