Andromeda XVIII

E128965

dwarf spheroidal galaxy galaxy in the Local Group satellite galaxy

Andromeda XVIII is a faint dwarf spheroidal galaxy in the Local Group, located near the Andromeda Galaxy (M31).

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All labels observed (1)

Label	Occurrences
Andromeda XVIII canonical	4

Predicate	Object
instanceOf	dwarf spheroidal galaxy ⓘ galaxy in the Local Group ⓘ satellite galaxy ⓘ
absoluteMagnitudeV	about −9.7 ⓘ
alsoKnownAs	And 18 ⓘ And XVIII ⓘ Andromeda 18 ⓘ
apparentMagnitudeV	about 16.0 ⓘ
belongsTo	Andromeda satellite system ⓘ surface form: M31 satellite system
contains	old red giant branch stars ⓘ
declination	+45° (approximate) ⓘ
discoveredBy	PAndAS survey team ⓘ
discoveryMethod	Pan-Andromeda Archaeological Survey ⓘ
discoveryYear	2008 ⓘ
distanceFromAndromedaGalaxy	approximately 600 kiloparsecs ⓘ
distanceFromEarth	approximately 1.3 million light-years ⓘ approximately 400 kiloparsecs ⓘ
environment	outer halo of the Andromeda Galaxy ⓘ
galaxyType	dwarf spheroidal ⓘ
gasContent	very low ⓘ
hasDarkMatter	yes ⓘ
hasGas	no significant neutral hydrogen detected ⓘ
isFaint	true ⓘ
isGravitationallyBoundTo	Andromeda Galaxy ⓘ
isPartOf	Local Group dwarf galaxy population ⓘ
isResolvedIntoStars	true ⓘ
locatedInConstellation	Cassiopeia ⓘ
luminosityClass	low-luminosity dwarf ⓘ
memberOf	Local Group ⓘ
metallicity	low ⓘ
morphologicalType	dSph ⓘ
observedInSurvey	PAndAS ⓘ
observedWith	Canada–France–Hawaii Telescope ⓘ
radialVelocity	about −332 km/s (heliocentric) ⓘ
redshift	approximately −0.0011 ⓘ
rightAscension	00h 02m (approximate) ⓘ
satelliteOf	Andromeda Galaxy ⓘ
shape	spheroidal ⓘ
starFormationActivity	quiescent ⓘ
stellarPopulation	old ⓘ
surfaceBrightness	very low ⓘ

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

Local Group → contains → Andromeda XVIII ⓘ

LG → containsGalaxy → Andromeda XVIII ⓘ

NGC 224 → hasSatelliteGalaxy → Andromeda XVIII ⓘ

Andromeda subgroup → hasMember → Andromeda XVIII ⓘ