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The USNO-B Catalog
Preprint
D. Monet ,
S. Levine ,
B. Canzian ,
H. Ables ,
A. Bird ,
C. Dahn ,
H. Guetter ,
H. Harris ,
A. Henden ,
S. Leggett ,
H. Levison ,
C. Luginbuhl ,
J. Martini ,
A. Monet ,
J. Munn ,
J. Pier ,
A. Rhodes ,
B. Riepe ,
S. Sell ,
R. Stone ,
F. Vrba ,
R. Walker ,
G. Westerhout ,
R. Brucato ,
N. Reid ,
W. Schoening ,
M. Hartley ,
M. Read ,
S. Tritton
2002-10-31
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Abstract
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.