The USNO-B 1.0 Catalogusnob.twomasscroivo://org.gavo.dc/usnob/res/usnob/twomasscrossThe GAVO DC teamGAVO Data Centerhttp://vo.ari.uni-heidelberg.de/docs/GavoTiny.png2008-01-25T00:00:00ZGAVO Data Center TeamMönchhofstrasse 12-14, D-69120 Heidelberggavo@ari.uni-heidelberg.de++49 6221 54 1837starssurveysproper-motionsA crossmatch between USNO-B 1.0 and 2MASS.https://dc.zah.uni-heidelberg.de/tableinfo/usnob.twomasscross0/1-112.257e-19 5.369e-19OpticalusnobThe USNO-B 1.0 CatalogThe USNO-B catalog is an all-sky catalog of about 1e9 objects
including their proper motions, based on scans of several sky surveys
conducted between 1950 and the late 1990ies.
usnob.twomasscrossA crossmatch between USNO-B 1.0 and 2MASS.360000000ipixq3c ipix value of USNO-B objectmeta.idlongindexedtwomassid2MASS id of matching objectmeta.id;meta.maincharindexednullable