|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:age
|
70 million years
|
|
gptkbp:apparentMagnitude
|
1.98
|
|
gptkbp:catalogueNumber
|
gptkb:HR_424
gptkb:BD+88_8
gptkb:FK5_907
gptkb:HD_8890
gptkb:HIP_11767
gptkb:SAO_308
gptkb:WDS_J02318+8915
|
|
gptkbp:closestBrightStarToNorthCelestialPole
|
true
|
|
gptkbp:constellation
|
gptkb:Ursa_Minor
|
|
gptkbp:containsPlanet
|
true
|
|
gptkbp:declination
|
+89° 15′ 50.8″
|
|
gptkbp:diameter
|
37.5 solar radii
|
|
gptkbp:discoveredBy
|
known since antiquity
|
|
gptkbp:distanceFromEarth
|
433 light years
|
|
gptkbp:epoch
|
gptkb:J2000
|
|
gptkbp:hasCompanion
|
gptkb:Polaris_B
Polaris Ab
|
|
gptkbp:historicalSignificance
|
true
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Polaris
|
|
gptkbp:isBrightestCepheid
|
true
|
|
gptkbp:isCepheidStandard
|
true
|
|
gptkbp:isEvolving
|
true
|
|
gptkbp:isNotExactlyAtCelestialPole
|
true
|
|
gptkbp:isNotVisibleFromSouthernHemisphere
|
true
|
|
gptkbp:isPartOfAsterism
|
gptkb:Little_Dipper
|
|
gptkbp:isReferenceForCelestialNavigation
|
true
|
|
gptkbp:isSupergiant
|
true
|
|
gptkbp:isTripleStarSystem
|
true
|
|
gptkbp:isVisibleFromNorthernHemisphere
|
true
|
|
gptkbp:luminosity
|
2,500 times Sun
|
|
gptkbp:mass
|
5.4 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = -0.03
|
|
gptkbp:otherName
|
gptkb:Nord
gptkb:Alpha_Ursae_Minoris
gptkb:Pole_Star
|
|
gptkbp:parallax
|
7.54 mas
|
|
gptkbp:precessesAroundPole
|
true
|
|
gptkbp:properMotionRA
|
-11.74 mas/yr
44.22 mas/yr
|
|
gptkbp:radialVelocity
|
-16.6 km/s
|
|
gptkbp:rightAscension
|
02h 31m 49.09s
|
|
gptkbp:spectralType
|
F7:Ib-II
|
|
gptkbp:temperature
|
6015 K
|
|
gptkbp:usedForNavigation
|
true
|
|
gptkbp:variableType
|
variable star
|
|
gptkbp:willBeClosestToPoleIn
|
2100 AD
|
|
gptkbp:bfsParent
|
gptkb:Stan_Lee
gptkb:aircraft
gptkb:Bengal_Silicon_Valley_Tech_Hub
|
|
gptkbp:bfsLayer
|
4
|