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gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:age
|
70 million years
|
|
gptkbp:alsoKnownAs
|
gptkb:Polaris
|
|
gptkbp:apparentMagnitude
|
1.98
|
|
gptkbp:catalogueNumber
|
gptkb:HR_424
gptkb:Alpha_Ursae_Minoris
gptkb:BD+88_8
gptkb:FK5_907
gptkb:HD_8890
gptkb:HIP_11767
gptkb:SAO_308
gptkb:2MASS_J02314909+8915037
gptkb:AAVSO_0227+88
gptkb:ADS_1477
gptkb:AG+89_4
gptkb:CCDM_J02319+8915
gptkb:GCRV_1046
gptkb:GC_2273
gptkb:GSC_04628-00237
gptkb:Gaia_DR2_576802191319052032
gptkb:IRAS_02268+8902
gptkb:PLX_573
gptkb:TYC_4628-237-1
gptkb:UCAC2_362858.00
gptkb:USNO-B1.0_1689-0005836
gptkb:WDS_J02318+8914
PPM 20000
|
|
gptkbp:component
|
gptkb:Polaris_Aa
|
|
gptkbp:constellation
|
gptkb:Ursa_Minor
|
|
gptkbp:culturalSignificance
|
important in many cultures for navigation
|
|
gptkbp:declination
|
+89° 15′ 50.8″
|
|
gptkbp:diameter
|
37.5 solar radii
|
|
gptkbp:discoveredBy
|
ancient astronomers
|
|
gptkbp:distanceFromEarth
|
433 light years
|
|
gptkbp:futurePoleStar
|
gptkb:Gamma_Cephei
|
|
gptkbp:hasCompanion
|
gptkb:Polaris_B
Polaris Ab
|
|
gptkbp:hasViewOf
|
gptkb:Northern_Hemisphere
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
The North Star
|
|
gptkbp:luminosity
|
2,500 times Sun
|
|
gptkbp:mass
|
5.4 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = -0.03
|
|
gptkbp:notVisibleIn
|
gptkb:Southern_Hemisphere
|
|
gptkbp:partOf
|
gptkb:Polaris_triple_star_system
|
|
gptkbp:previousPoleStar
|
gptkb:Thuban
|
|
gptkbp:rightAscension
|
02h 31m 49.09s
|
|
gptkbp:role
|
current northern pole star
|
|
gptkbp:spectralType
|
F7
|
|
gptkbp:symbolizes
|
gptkb:navigation
guidance
constancy
|
|
gptkbp:temperature
|
6,015 K
|
|
gptkbp:usedFor
|
gptkb:navigation
|
|
gptkbp:variableType
|
variable star
|
|
gptkbp:bfsParent
|
gptkb:Frederick_Douglass
|
|
gptkbp:bfsLayer
|
4
|