Findings:
- Gemini (user)
- Harvard College Observatory
- Observatory
- Gemini I
- Lick Observatory
- Holden Gemini
- Kitt Peak National Observatory
- Gemini IV
- Hat Creek Observatory
- Gemini 4
- United States Naval Observatory
- Barnard Observatory
- Gemini V
- Compton Gamma Ray Observatory
- Jet Force Gemini
- From the Earth to the Moon: 4: Reply from the Observatory of Cambridge
- Gemini
- Sudbury Neutrino Observatory
- Gemini VII
- Yerkes Observatory
- Gemini 7
- ghostland observatory
- Gemini Project
- Arecibo Observatory
- Gemini VI
- South African Astronomical Observatory
- Blue Gemini
- Radcliffe Observatory
- Royal Greenwich Observatory
- Gemini VIII
- Large Binocular Telescope Observatory
- The Gemini Man
- Gemini award
- Cerro Tololo Interamerican Observatory
- Gemini IX
- Chandra X-Ray Observatory
- Mercury in Gemini
- Paris Observatory
- Gemini X
- Palomar Observatory
- Coleco Gemini
- Gemini man
- Mount Stromlo Observatory
- Gemini XI
- Vatican Observatory
- Gemini III
- Kirkwood Observatory
- Gemini XII
- U.S. Naval Observatory
- Armagh Observatory
- Gemini II
- Laser Interferometer Gravity-wave Observatory
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