Stellar and Astrometric

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» Astrometric holdings in ADC Archives - Data sets in the Astronomical Data Center's Astrometric, and Positional data holdings. Contains site map, science data, news, and feedback.
» Catalog of White Dwarf Stars McCook and Sion - A catalog of spectroscopically identified white dwarf stars, by George P. McCook and Edward M. Sion
» GSC - The Online HST Guide Star Catalogue -
» Nstars Online Spectra - A spectroscopic survey of 3600 nearby stars within 40pcs earlier than M0. Contains real-time spectral plots, and coordinate lists. Also MK standards.
» The 50 Nearest Stars - Table with details about the 50 nearest stars. Names, distances, constellations, spectral types, magnitudes and coordinates.
» The Double Star Library - 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
» The Hipparcos Catalogue -
» The Hipparcos Space Astrometry Mission - home page, site guide, research tools, news and results, the catalogues, education, visual results, further information, the future, animations.
» USNO PMM Star Catalogs - 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 suffici
» White Dwarf Database - An electronic database of the white dwarf stars.