|
gptkbp:instanceOf
|
gptkb:galaxy
|
|
gptkbp:alsoKnownAs
|
gptkb:Andromeda_Galaxy
|
|
gptkbp:apparentMagnitude
|
3.44
|
|
gptkbp:catalogue
|
gptkb:Messier
|
|
gptkbp:catalogueNumber
|
gptkb:NGC_224
gptkb:PGC_2557
gptkb:UGC_454
|
|
gptkbp:constellation
|
gptkb:Andromeda
|
|
gptkbp:declination
|
+41° 16′ 9″
|
|
gptkbp:diameter
|
220,000 light-years
|
|
gptkbp:discoveredBy
|
gptkb:Abd_al-Rahman_al-Sufi
|
|
gptkbp:discoveredIn
|
964
|
|
gptkbp:distanceFromEarth
|
2.537 million light-years
|
|
gptkbp:firstPhotographedBy
|
gptkb:Isaac_Roberts
|
|
gptkbp:firstPhotographedYear
|
1887
|
|
gptkbp:futureCollisionTime
|
~4.5 billion years
|
|
gptkbp:futureCollisionWith
|
gptkb:Milky_Way
|
|
gptkbp:galacticNucleusType
|
double nucleus
|
|
gptkbp:hasBeenObservedSince
|
ancient times
|
|
gptkbp:hasCepheidVariables
|
true
|
|
gptkbp:hasDarkMatterHalo
|
true
|
|
gptkbp:hasDustLanes
|
true
|
|
gptkbp:hasGlobularClusters
|
over 450
|
|
gptkbp:hasHIIRegions
|
true
|
|
gptkbp:hasNovae
|
true
|
|
gptkbp:hasPlanetaryNebulae
|
true
|
|
gptkbp:hasStarFormationRegions
|
true
|
|
gptkbp:hasStellarStreams
|
true
|
|
gptkbp:hasSupermassiveBlackHole
|
true
|
|
gptkbp:hasSupernovaRemnants
|
true
|
|
gptkbp:hasTidalTails
|
true
|
|
gptkbp:hasXRaySources
|
true
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
M31
|
|
gptkbp:infraredLuminosity
|
3.6×10^10 L☉
|
|
gptkbp:isApproachingMilkyWay
|
true
|
|
gptkbp:isLargestInLocalGroup
|
true
|
|
gptkbp:isSpiralGalaxy
|
true
|
|
gptkbp:mass
|
1.5×10^12 solar masses
|
|
gptkbp:metallicity
|
0.0134
|
|
gptkbp:partOf
|
gptkb:Local_Group
|
|
gptkbp:radialVelocity
|
-301 km/s
|
|
gptkbp:rating
|
1 trillion
|
|
gptkbp:rightAscension
|
00h 42m 44.3s
|
|
gptkbp:satelliteGalaxies
|
gptkb:NGC_147
gptkb:NGC_185
gptkb:M32
gptkb:M110
|
|
gptkbp:type
|
SA(s)b
|
|
gptkbp:ultravioletLuminosity
|
1.1×10^9 L☉
|
|
gptkbp:visibleToNakedEye
|
true
|
|
gptkbp:bfsParent
|
gptkb:Adeptus_Mechanicus
gptkb:MTA_Regional_Bus_Operations
|
|
gptkbp:bfsLayer
|
5
|