International Celestial Reference Frame
GPTKB entity
Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
celestial reference frame
|
| gptkbp:abbreviation |
gptkb:ICRF
|
| gptkbp:accuracy |
microarcsecond level
|
| gptkbp:adoptedBy |
1998
|
| gptkbp:coordinates |
equatorial
|
| gptkbp:definedIn |
positions of extragalactic radio sources
|
| gptkbp:epoch |
gptkb:J2000.0
|
| gptkbp:frameOrigin |
gptkb:solar_system_barycenter
|
| https://www.w3.org/2000/01/rdf-schema#label |
International Celestial Reference Frame
|
| gptkbp:latestReleaseVersion |
gptkb:ICRF3
2018 |
| gptkbp:maintainedBy |
gptkb:International_Astronomical_Union
|
| gptkbp:numberOfDefiningSources |
over 4000
|
| gptkbp:referenceAxis |
vernal equinox
|
| gptkbp:referencePlane |
gptkb:celestial_equator
|
| gptkbp:referenceType |
quasars
|
| gptkbp:relatedTo |
gptkb:International_Terrestrial_Reference_Frame
|
| gptkbp:replacedBy |
FK5
|
| gptkbp:usedFor |
radio astronomy
astrometry space navigation |
| gptkbp:bfsParent |
gptkb:J2000
|
| gptkbp:bfsLayer |
6
|