Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:star
|
| gptkbp:apparentMagnitude |
2.08
|
| gptkbp:component |
Polaris (Alpha Ursae Minoris)
|
| gptkbp:declination |
+89° 15′ 50.8″
|
| gptkbp:diameter |
~37.5 solar radii
|
| gptkbp:discoveredBy |
gptkb:William_Herschel
|
| gptkbp:discoveredIn |
1780
|
| gptkbp:distanceFromEarth |
~430 light-years
|
| https://www.w3.org/2000/01/rdf-schema#label |
Alpha Ursae Minoris Aa
|
| gptkbp:isPrimaryComponentOf |
gptkb:Polaris_triple_star_system
|
| gptkbp:locatedIn |
gptkb:Ursa_Minor
|
| gptkbp:luminosity |
~1260 solar luminosities
|
| gptkbp:mass |
~5.4 solar masses
|
| gptkbp:metallicity |
[Fe/H] = 0.07
|
| gptkbp:otherName |
gptkb:Polaris_Aa
|
| gptkbp:partOf |
gptkb:Alpha_Ursae_Minoris_system
|
| gptkbp:period |
~3.97 days
|
| gptkbp:rightAscension |
02h 31m 49.09s
|
| gptkbp:spectralType |
F7
|
| gptkbp:temperature |
~6015 K
|
| gptkbp:variableType |
variable star
|
| gptkbp:bfsParent |
gptkb:Polaris_Aa
|
| gptkbp:bfsLayer |
6
|