Andromeda XI
E114374
Andromeda XI is a faint dwarf spheroidal satellite galaxy of the Andromeda Galaxy located within the Local Group.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Andromeda XI canonical | 4 |
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
dwarf spheroidal galaxy ⓘ satellite galaxy ⓘ |
| absoluteMagnitudeV | approximately −6.9 ⓘ |
| apparentMagnitudeV | approximately 16.6 ⓘ |
| belongsTo | satellite system of M31 ⓘ |
| contains | old red giant branch stars ⓘ |
| coordinateSystem | equatorial coordinate system (J2000) ⓘ |
| darkMatterContent | dark-matter-dominated ⓘ |
| declination | +33° 48′ ⓘ |
| discoveredBy |
A. W. McConnachie
ⓘ
M. J. Irwin ⓘ N. F. H. Tollerud ⓘ N. F. Martin ⓘ T. S. Chapman ⓘ |
| discoveryMethod | wide-field imaging survey ⓘ |
| discoveryYear | 2006 ⓘ |
| distanceFromAndromedaGalaxy | approximately 100 kiloparsecs ⓘ |
| distanceFromEarth | approximately 2.6 million light-years ⓘ |
| environment | outer halo of the Andromeda Galaxy ⓘ |
| galaxyType | dwarf spheroidal galaxy ⓘ |
| gasContent | gas-poor ⓘ |
| grouping | Andromeda I, II, III, IX, X, XI, XII, XIII dwarf spheroidal companions ⓘ |
| halfLightRadius | approximately 145 parsecs ⓘ |
| hasColorMagnitudeDiagram | consistent with an old, metal-poor population ⓘ |
| hostGalaxy |
Andromeda Galaxy
ⓘ
surface form:
M31
|
| locatedIn |
Local Group
ⓘ
constellation Pegasus ⓘ |
| luminosity | approximately 4×10^4 times the luminosity of the Sun ⓘ |
| memberOf | Local Group ⓘ |
| metallicity | low metallicity ⓘ |
| morphology | spheroidal ⓘ |
| observedWith |
Canada–France–Hawaii Telescope
ⓘ
surface form:
Canada-France-Hawaii Telescope
|
| otherDesignation |
And XI
ⓘ
Andromeda 11 ⓘ |
| radialVelocity | approximately −420 km/s ⓘ |
| redshift | approximately −0.001 ⓘ |
| rightAscension | 00h 46m ⓘ |
| satelliteOf | Andromeda Galaxy ⓘ |
| starFormationActivity | no current star formation ⓘ |
| stellarPopulation | old stars ⓘ |
| surfaceBrightness | very low surface brightness ⓘ |
| surfaceBrightnessProfile | well fit by an exponential profile ⓘ |
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.