National Optical Astronomy Observatories
APO (Apache Point Observatory) Home Page
Flexible Image Transport System [FITS]
Warsaw University Astronomical Observatory
Optical and Infrared Astronomy Division
Hubble Space Telescope Astrometry Science Team
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Dominion Radio Astrophysical Observatory (DRAO)
Space Telescope Science Institute (STScI)
Center for Extreme Ultraviolet Astrophysics
NASA Astrophysics Data System Home page - Classic System
Berkeley Astronomy Department (BAD) Gopher
NASA/IPAC Extragalactic Database (NED)
National Astronomy and Ionosphere Center Arecibo Observatory
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