| SIMBAD (Set of Identifications, Measurements, and Bibliography for Astronomical Data), created and maintained by the Centre de Donnees astronomiques de Strasbourg, brings together basic data, cross-identifications, observational measurements, and bibliography, for celestial objects outside the solar system: stars, galaxies, and nonstellar objects within our galaxy, or in external galaxies. SIMBAD contains information for about 1 million objects, for which 3.3 million identifiers, more than 1.5 million observational measurements and 1.4 million bibliographical references are available. |