IRSA - United States Naval Observatory B1.0 Catalog

Mission Characteristics

Lifetime:	Digitizations of photographic plates covering the years 1949-2002
Wavelength:	Optical B, R, and I bands (0.4-0.9 microns)
Area Coverage:	All-Sky
Science Products Generated:	All-sky catalog of photometry, positions, and derived proper motions

IRSA Services

USNO-B1 Catalog	Use IRSA's General Catalog Search (Gator) to search the catalog

Other Resources:

USNOFS PMM Catalogs	Project Website