Description: USNO-B1.0 Catalog
References:
- An all-sky catalog that indicates positions, proper motions, magnitudes in multiple optical pass-bands, and star/galaxy estimators for 1,042,618,261 objects derived from 3,643,201,733 distinct observations [1]
- The data were derived from digitizing scans of almost 7,500 photographic plates taken from multiple sky surveys during the interval from 1949 to 2002 [2]
- Description of the parameters each object in the USNO-B1.0 catalog has can be found here