TY - BOOK ED - Smithsonian Astrophysical Observatory. ED - Smithsonian Astrophysical Observatory TI - Smithsonian astrophysical observatory star catalog: positions and proper motions of 258, 997 stars for the epoch and equinox of 1950.0, pt. iii PY - 1966/// CY - Washington PB - Smithsonian Institution Press KW - Astronomy and astrophysics thesaurus KW - Catalogue - Stars KW - Stars - Catalogue ER -