Ursa Minor dSph
E539931
Ursa Minor dSph is a faint dwarf spheroidal satellite galaxy of the Milky Way located in the constellation Ursa Minor.
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | dwarf spheroidal galaxy ⓘ |
| absoluteMagnitudeV | about −8.8 ⓘ |
| alternativeName |
PGC 54074
NERFINISHED
ⓘ
UGC 9749 NERFINISHED ⓘ Ursa Minor Dwarf NERFINISHED ⓘ |
| apparentMagnitudeV | about 10.9 ⓘ |
| belongsTo | Milky Way satellite system NERFINISHED ⓘ |
| contains |
RR Lyrae variables
NERFINISHED
ⓘ
horizontal branch stars ⓘ red giant branch stars ⓘ |
| coordinateSystem | equatorial ⓘ |
| darkMatterContent | dark-matter-dominated ⓘ |
| declination | +67° 13′ ⓘ |
| discoveredBy | A. G. Wilson NERFINISHED ⓘ |
| discoveredUsing | Palomar Observatory Sky Survey NERFINISHED ⓘ |
| discoveryYear | 1954 ⓘ |
| distanceFromEarth |
~215,000 light-years
ⓘ
~66 kpc ⓘ |
| dominantStellarPopulationAge | >10 Gyr ⓘ |
| environment | Galactic halo ⓘ |
| galaxyType | dSph ⓘ |
| gasContent | gas-poor ⓘ |
| gasPhaseStarFormation | absent ⓘ |
| halfLightRadius | ~300 pc ⓘ |
| hasGlobularClusters | false ⓘ |
| hasNucleus | false ⓘ |
| isFaint | true ⓘ |
| isResolvedIntoStars | true ⓘ |
| locatedIn | Ursa Minor constellation region of the sky ⓘ |
| locatedInConstellation | Ursa Minor NERFINISHED ⓘ |
| memberOf | Local Group NERFINISHED ⓘ |
| metallicity | very metal-poor ⓘ |
| morphologicalType | dE3 ⓘ |
| observationalChallenge | low surface brightness ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ |
| orbitalRelationToMilkyWay | bound satellite ⓘ |
| radialVelocity | about −247 km/s ⓘ |
| rightAscension | 15h 09m ⓘ |
| satelliteOf | Milky Way NERFINISHED ⓘ |
| shape | elongated ⓘ |
| starFormationActivity | quiescent ⓘ |
| stellarKinematics | pressure-supported ⓘ |
| stellarPopulation | old ⓘ |
| surfaceBrightness | very low ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.