The North Star

URI: https://gptkb.org/entity/The_North_Star

GPTKB entity

AI-created image

Statements (58)

Predicate	Object
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
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	gptkb:variable_star
gptkbp:bfsParent	gptkb:American_abolitionist_movement gptkb:Frederick_Douglass gptkb:Anne_Baxter
gptkbp:bfsLayer	5
https://www.w3.org/2000/01/rdf-schema#label	The North Star