Smithsonian Astrophysical Observatory Star Catalog
ASTROMETRIC STAR CATALOGUE
Smithsonian Astrophysical Observatory catalogue; Smithsonian Astrophysical Observatory Star Catalogue; SAO Catalogue; SAO Catalog; SAO Star Catalog
The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue, created by Smithsonian Institution, a research institute. It was published by the Smithsonian Astrophysical Observatory in 1966 and contains 258,997 stars.