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National Space Science Data Center
National Space Science Data Center (NSSDC) Home Page The Astronomical Data Center provides astronomical catalogs and journal tables to the scientific community. The site includes nine data categories: astrometric and positional, photometric, spectroscopic, cross identifications, combined and derived, miscellaneous, non stellar and extended objects, radio sources, and high-energy data. Users can search by keyword, author name, and year of publication; or browse by catalog category, journal title, and author name.
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