 | Telescopio ottico | | | |  | Radiotelescopio | | | |
| Link | Observatorio Astronómico de La Plata | . |  | |
| Link | David Dunlap Observatory | . |  | |
| Link | Cerro Tololo Inter-American Observatory | . |  | |
| Link | European Southern Observatory | Osservatorio della ESA in territorio cileno. |  | |
| Link | Las Campanas Observatory | Osservatorio del "Carnegie Institution" di Washington (USA). |  | |
| Link | La Silla Observatory | Osservatorio della ESA in territorio cileno. |  | |
| Link | Paranal Observatory | Il VLT (Very Large Telescope) della ESA in territorio cileno. |  | |
| Link | Observatorio Astronomico Nacional | Osservatorio della ESA in territorio cileno. |  | |
| USA - STATI UNITI D'AMERICA - UNITED STATES OF AMERICA |
| Link | Apache Point Observatory (New Mexico) | . |  | |
| Link | Arecibo Observatory (Puerto Rico) | Il più grande radiotelescopio del mondo che è anche sede del Progetto SETI. | |  |
| Link | Big Bear Solar Observatory (California) | Osservatorio solare. |  | |
| Link | Caltech Submillimeter Observatory (Hawaii) | . | |  |
| Link | Gemini Observatory (Hawaii & Cile) | . |  | |
| Link | Griffith Observatory (California) | . |  | |
| Link | Haystack Observatory (Massachusetts) | . |  |  |
| Link | Kitt Peak National Observatory (Arizona) | . |  | |
| Link | Joint Astronomy Centre (Hawaii e Arizona) | . |  | |
| Link | Large Binocular Telescope Observatory (Arizona) | . |  | |
| Link | Lick Observatory (California) | . |  | |
| Link | Lowell Observatory (Arizona) | . |  | |
| Link | Mauna Kea Observatories (Hawaii) | . |  |  |
| Link | McDonald Observatory (Texas) | . |  | |
| Link | Mees Solar Observatory (Hawaii) | Osservatorio solare. |  | |
| Link | Meyer-Womble Observatory (Colorado) | . |  | |
| Link | MMT Observatory (Arizona) | . |  | |
| Link | Mount Wilson Observatory (California) | . |  | |
| Link | National Optical Astronomy Observatory | . |  | |
| Link | National Solar Observatory | Osservatorio solare. |  | |
| Link | National Radio Astronomy Observatory | . | |  |
| Link | National Radio Astronomy Observatory (Green Bank, West Virginia) | . | |  |
| Link | National Radio Astronomy Observatory (Socorro, New Mexico) | . | |  |
| Link | National Radio Astronomy Observatory (Tucson, Arizona) | . | |  |
| Link | Owens Valley Radio Observatory (California) | . | |  |
| Link | Palomar Observatory (California) | Uno dei più famosi osservatori ottici del mondo. |  | |
| Link | Puckett Observatory (Georgia) | Osservatorio privato dedicato alle comete ed alle supernovae.. |  | |
| Link | Smithsonian Astrophysical Observatory (Massachusetts) | . |  | |
| Link | Steward Observatory (Arizona) | . |  | |
| Link | United States Naval Observatory (Washington, District of Columbia) | . |  | |
| Link | Vatican Observatory (Arizona) | Osservatorio della Città del Vaticano su territorio USA. |  | |
| Link | WIYN Observatory | . |  | |
| Link | Yerkes Observatory (Wisconsin) | . |  | |
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