Findings:
- Frances Perkins
- ghostland observatory
- Radcliffe Observatory
- Carl Perkins
- Marlin Perkins
- Perkin
- Kleiner Perkins
- Dr. Charles Perkins
- Tex Perkins
- Charlotte Perkins Gilman
- From the Earth to the Moon: 4: Reply from the Observatory of Cambridge
- Perkins
- Kieren Perkins
- Anthony Perkins
- Perkin Warbeck
- Dorothy Perkins
- Sue Perkins
- perkins (user)
- Jacob Perkins
- Bryan Ward Perkins
- big sexy perkins (user)
- Perkins 1 (user)
- Perkin Medal
- Lick Observatory
- Armagh Observatory
- Observatory
- Barnard Observatory
- Sudbury Neutrino Observatory
- Arecibo Observatory
- Royal Greenwich Observatory
- Cerro Tololo Interamerican Observatory
- Paris Observatory
- Mount Stromlo Observatory
- Kirkwood Observatory
- Laser Interferometer Gravity-wave Observatory
- Hat Creek Observatory
- Compton Gamma Ray Observatory
- Yerkes Observatory
- South African Astronomical Observatory
- Large Binocular Telescope Observatory
- Chandra X-Ray Observatory
- Palomar Observatory
- Vatican Observatory
- U.S. Naval Observatory
- Harvard College Observatory
- Kitt Peak National Observatory
- United States Naval Observatory
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