USNO-B Catalog ConeSearch
USNO-B is an all-sky catalog that presents positions, proper motions, magnitudes in various optical\npassbands, and star/galaxy estimators for 1,042,618,261 objects derived from 3,643,201,733 separate\nobservations. The data were obtained from scans of 7435 Schmidt plates taken for the various sky surveys\nduring the last 50 years. USNO-B1.0 is believed to provide all-sky coverage, completeness down to V = 21,\n0>2 astrometric accuracy at J2000, 0.3 mag photometric accuracy in up to five colors, and 85% accuracy for\ndistinguishing stars from nonstellar objects.\nA more detailed description of the construction and contents of the USNO-B1 catalog can be found in Monet et al. \n(2003, "The USNO-B Catalog", AJ, 125, 984), http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/usno-b1.0/resolveuid/41be0c1a4d1a8372289bad3baf27cde5.\n\nA mirror of USNOB exists in the MAST holdings and is thus available as a cone search.\nAll available catalogs are listed at http://archive.stsci.edu/vo/mast_services.html.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "026:00" ] |
| contactPoint |
{ "fn": "MAST Archive", "@type": "vcard:Contact", "hasEmail": "mailto:archive@stsci.edu" } |
| description | USNO-B is an all-sky catalog that presents positions, proper motions, magnitudes in various optical\npassbands, and star/galaxy estimators for 1,042,618,261 objects derived from 3,643,201,733 separate\nobservations. The data were obtained from scans of 7435 Schmidt plates taken for the various sky surveys\nduring the last 50 years. USNO-B1.0 is believed to provide all-sky coverage, completeness down to V = 21,\n0>2 astrometric accuracy at J2000, 0.3 mag photometric accuracy in up to five colors, and 85% accuracy for\ndistinguishing stars from nonstellar objects.\nA more detailed description of the construction and contents of the USNO-B1 catalog can be found in Monet et al. \n(2003, "The USNO-B Catalog", AJ, 125, 984), http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/usno-b1.0/resolveuid/41be0c1a4d1a8372289bad3baf27cde5.\n\nA mirror of USNOB exists in the MAST holdings and is thus available as a cone search.\nAll available catalogs are listed at http://archive.stsci.edu/vo/mast_services.html. |
| distribution |
[ { "@type": "dcat:Distribution", "format": "HTML", "mediaType": "text/html", "downloadURL": "http://archive.stsci.edu/vo/mast_services.html" }, { "@type": "dcat:Distribution", "format": "BIN", "mediaType": "application/octet-stream", "downloadURL": "http://gsss.stsci.edu/webservices/vo/ConeSearch.aspx?CAT=USNOB&" } ] |
| identifier | ivo://archive.stsci.edu/catalogs/usnob |
| keyword |
[ "__" ] |
| landingPage | ivo://archive.stsci.edu/catalogs/usnob |
| license | https://www.usa.gov/government-works |
| modified | 2026-11-05 |
| programCode |
[ "026:000" ] |
| publisher |
{ "name": "MAST: Mikulski Archive at Space Telescope", "@type": "org:Organization" } |
| theme |
[ "Astrophysics" ] |
| title | USNO-B Catalog ConeSearch |