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USNO is making the USNO-SA2.0 catalog (54,787,624 stars in all on one CD-ROM) available for free. The full USNO-A2.0 catalog (526,230,881 stars on 10 CD-ROMs) is also available provided you can provide a brief explanation of why USNO-SA2.0 is not sufficient. That's information on over half a billion stars!
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PMM Project Star Catalogs For the entire northern sky and the southern sky down to declinations of -30°, all the photographic plates were part of the original Palomar Optical Sky Survey (POSS-I Photographs were taken on blue- and red-sensitive emulsions. Only those stars which...home page, site guide, research tools, news and results, the catalogues, education, visual results, further information, the future, animations.
http://astro.estec.esa.nl/Hipparcos/
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Hipparchos catalogue: query form This form gives access to the catalogue of results from the Hipparcos mission. Queries return astrometric and photometric data for individual objects. Some objects also have finding charts and light curves. Positional and Kinematic Information Target Name Use of name...site exerpt
The Online HST Guide Star Catalogue Archive provides access to the all-sky astrometric and photometric catalogue from the set of two CD-ROMs produced by the Space Telescope Science Institute through its Catalogs and Surveys Branch. Please read the Guide Star Catalogue Information page to find out...An electronic database of the white dwarf stars.
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White Dwarf Database Enter a free form target name in the search box below: There are 2165 objects in this list RA: 0h 6h RA: 6h 12h RA: 12h 18h RA: 18h 24h WD0000+171 WD0000-170 WD0000-186 WD0000-345 WD0002+729 WD0003+177 WD0003+436J WD0004+061 WD0004+330 WD0004-315...Table with details about the 50 nearest stars. Names, distances, constellations, spectral types, magnitudes and coordinates.
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NEAREST STARS The 50 Nearest Stars Cosmobrain The present version of this table contains all the 50 known stars within 4.9 parsecs of the Sun. For each star, this list contains the trigonometric parallax, distance to the Sun in light years and in parsecs visual and absolute...A spectroscopic survey of 3600 nearby stars within 40pcs earlier than M0. Contains real-time spectral plots, and coordinate lists. Also MK standards.
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Appalachian State University Nstars Spectra Project This website is dedicated to the release of near real-time spectral data from the NASA/JPL NStars project through Appalachian State University. The main public area of the site is through the web interface which anyone can use by following the...Data sets in the Astronomical Data Center's Astrometric, and Positional data holdings. Contains site map, science data, news, and feedback.
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Astrometric holdings in ADC Archives This listing shows the contents of the first line of the standard ReadMe document for data sets in the Astronomical Data Center's Astrometric and Positional data holdings. These lines include ADC data set identifier, the shortened title, the lead author,...A catalog of spectroscopically identified white dwarf stars, by George P. McCook and Edward M. Sion
http://www.willbell.com/software/hypersky/wd1987.htm
The Double Star Library hopes to be a means by which various types of binary and multiple star information can be easily disseminated among binary star astronomers in IAU Commission 26 and related commissions.
http://ad.usno.navy.mil/wds/dsl.html