The USNO-B Catalog

Details The USNO-B Catalog The USNO-B Catalog

2002-10-31

arxiv.org/abs/astro-ph/0210694v1

Astron.J.125:984-993,2003

Astronomy and Astrophysics

Astrophysics

Accepted by Astronomical Journal

Scientific paper

10.1086/345888

USNO-B is an all-sky catalog that presents positions, proper motions, magnitudes in various optical passbands, and star/galaxy estimators for 1,042,618,261 objects derived from 3,643,201,733 separate observations. The data were obtained from scans of 7,435 Schmidt plates taken for the various sky surveys during the last 50 years. USNO-B1.0 is believed to provide all-sky coverage, completeness down to V = 21, 0.2 arcsecond astrometric accuracy at J2000, 0.3 magnitude photometric accuracy in up to five colors, and 85% accuracy for distinguishing stars from non-stellar objects. A brief discussion of various issues is given here, but the actual data are available from http://www.nofs.navy.mil and other sites.

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