USNO-B query

This is a simple cone-search like interface to the USNO-B table. You probably do not want to use this; for a form interface to USNO-B, use VizieR's USNO-B Form, for advanced queries, our USNO-B table is exposed to our TAP service.

Coordinates (as h m s, d m s or decimal degrees), or SIMBAD-resolvable object
Search radius in arcminutes
Right Ascension at Eq=J2000, Ep=J2000
Declination at Eq=J2000, Ep=J2000
First blue magnitude (B1)
B1 Field number in survey
B2 Field number in survey
R1 Field number in survey
R2 Field number in survey
Sort by
Limit to items.
This service uses code provided by For more details visit The field metadata were, in part, taken from CDS' Vizier service.