The SPM4 Catalog contains absolute proper motions, celestial
coordinates, and B,V photometry for 103,319,647 stars and galaxies
between the south celestial pole and -20 degrees declination. The
catalog is roughly complete to V=17.5. It is based on photographic and
CCD observations taken with the Yale Southern Observatory's
double-astrograph at Cesco Observatory in El Leoncito, Argentina.
Keywords
Catalogs
Stars: Proper Motions
Creator
Girard, T. M.; van Altena, W. F.; Zacharias, N.; Vieira, K.;
Casetti-Dinescu, D. I.; Castillo, D.; Herrera, D.; Lee, Y. S.; Beers,
T. C.; Monet, D. G.; López, C. E.