Andromeda Galaxy

E19954
Local Group member barred spiral galaxy galaxy spiral galaxy

The Andromeda Galaxy is the nearest large spiral galaxy to the Milky Way and is on a collision course to eventually merge with it.

Observed surface forms (4)

Surface form As subject As object
M31 0 2
Andromeda 0 1
Andromeda Nebula 0 1
Messier 31 0 1

Statements (49)

Predicate Object
instanceOf Local Group member →
barred spiral galaxy →
galaxy →
spiral galaxy →
alsoKnownAs Andromeda Galaxy →
surface form: Andromeda Nebula

Andromeda Galaxy →
surface form: M31

Andromeda Galaxy →
surface form: Messier 31

NGC 224 →
angularSize_degrees about 3.2 by 1 →
apparentMagnitude_V about 3.4 →
cataloguedBy Charles Messier →
centralBlackHoleMass_solarMasses about 100 million →
centralBlackHoleName M31* →
contains supermassive black hole →
declination_J2000 +41° 16′ 9″ →
diameter_ly about 220,000 →
discoveredBy unknown ancient observers →
distanceFromEarth_ly about 2.5 million light-years →
distanceFromMilkyWay_ly about 2.5 million light-years →
expectedMergerWithMilkyWay_years about 4–5 billion years →
firstRecordedBy Al-Sufi →
surface form: Abd al-Rahman al-Sufi
firstRecordedYear 964 →
galacticLatitude_deg −21.6 →
galacticLongitude_deg 121.2 →
hasComponent bulge →
globular cluster system →
halo →
stellar disk →
hasMorphologicalType SA(s)b →
hasSatelliteGalaxy M110 →
M32 →
NGC 205 →
hasSpiralArms yes →
isLargestGalaxyIn Local Group →
isNearestLargeSpiralTo Milky Way →
locatedInConstellation Andromeda Galaxy self-linksurface differs →
surface form: Andromeda
messierNumber 31 →
movingToward Milky Way →
neighborOf Milky Way →
ngcNumber 224 →
numberOfGlobularClusters about 450 →
onCollisionCourseWith Milky Way →
partOf Local Group →
radialVelocity_km_per_s about −300 →
redshift_z about −0.001001 →
rightAscension_J2000 00h 42m 44.3s →
stellarMass_solarMasses about 1 trillion →
totalMass_solarMasses about 1.5 trillion →
visibleToNakedEye yes →

Referenced by (10)

Full triples — surface form annotated when it differs from this entity's canonical label.

Andromeda Galaxy → alsoKnownAs → Andromeda Galaxy →
this entity surface form: M31
Andromeda Galaxy → alsoKnownAs → Andromeda Galaxy →
this entity surface form: Messier 31
Andromeda Galaxy → alsoKnownAs → Andromeda Galaxy →
this entity surface form: Andromeda Nebula
Triangulum Galaxy → companionOf → Andromeda Galaxy →
Local Group → contains → Andromeda Galaxy →
Baade’s star → hostGalaxy → Andromeda Galaxy →
this entity surface form: M31
Local Group → isDominatedBy → Andromeda Galaxy →
Baade’s star → locatedIn → Andromeda Galaxy →
Andromeda Galaxy → locatedInConstellation → Andromeda Galaxy self-linksurface differs →
this entity surface form: Andromeda
Milky Way → neighborOf → Andromeda Galaxy →