Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
astronomer
|
| gptkbp:basedOn |
digitized photographic sky survey plates
|
| gptkbp:compiledBy |
gptkb:United_States_Naval_Observatory
|
| gptkbp:contains |
over 1 billion astronomical objects
|
| gptkbp:covers |
entire sky
|
| gptkbp:dataSource |
gptkb:AAO
gptkb:ESO/SERC gptkb:POSS-I gptkb:POSS-II |
| gptkbp:epoch |
1949-2002
|
| https://www.w3.org/2000/01/rdf-schema#label |
USNO-B1.0
|
| gptkbp:includes |
positions
proper motions magnitudes in various optical bands |
| gptkbp:predecessor |
gptkb:USNO-A2.0
|
| gptkbp:publishedIn |
2003
|
| gptkbp:usedFor |
photometry
astrometry |
| gptkbp:bfsParent |
gptkb:USNO-B1.0_1689-0005836
|
| gptkbp:bfsLayer |
6
|