Crater II Dwarf Galaxy
E507880
Crater II Dwarf Galaxy is a faint, ultra-diffuse satellite galaxy of the Milky Way located in the constellation Crater.
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf galaxy
ⓘ
spheroidal galaxy ⓘ ultra-diffuse galaxy ⓘ |
| absoluteMagnitudeV | about −8.2 ⓘ |
| alternativeName |
Crater 2
NERFINISHED
ⓘ
Crater II NERFINISHED ⓘ Crater II dSph NERFINISHED ⓘ |
| angularSize | about 1.1 degrees ⓘ |
| apparentMagnitudeV | about 16 ⓘ |
| contains |
horizontal branch stars
ⓘ
old red giant branch stars ⓘ |
| coordinateSystem | equatorial coordinates ⓘ |
| darkMatterDominated | true ⓘ |
| declinationEpochJ2000 | approximately −18° 24′ ⓘ |
| discoveredBy |
S. E. Koposov
NERFINISHED
ⓘ
V. J. Belokurov NERFINISHED ⓘ |
| discoveryMethod | photometric survey ⓘ |
| discoverySurvey | VST ATLAS survey NERFINISHED ⓘ |
| discoveryYear | 2016 ⓘ |
| distanceFromEarth |
approximately 117 kiloparsecs
ⓘ
approximately 380000 light-years ⓘ |
| galacticHemisphere | southern celestial hemisphere ⓘ |
| gasContent | gas-poor ⓘ |
| halfLightRadius |
about 1100 parsecs
ⓘ
about 3600 light-years ⓘ |
| hostGalaxy | Milky Way NERFINISHED ⓘ |
| hostSystem | Milky Way halo NERFINISHED ⓘ |
| locatedInConstellation | Crater NERFINISHED ⓘ |
| luminosityClass | very low-luminosity ⓘ |
| memberOf | Local Group NERFINISHED ⓘ |
| metallicity | low metallicity ⓘ |
| morphologicalType | dSph (dwarf spheroidal) ⓘ |
| notableProperty |
one of the largest known Milky Way dwarf spheroidal satellites by size
ⓘ
one of the lowest surface brightness galaxies known in the Local Group ⓘ |
| radialVelocity | approximately 87 km/s (heliocentric) ⓘ |
| researchInterest |
dynamical heating and tidal effects from the Milky Way
ⓘ
tests of dark matter distribution in low surface brightness dwarfs ⓘ |
| rightAscensionEpochJ2000 | approximately 11h 49m ⓘ |
| satelliteOf | Milky Way NERFINISHED ⓘ |
| starFormationActivity | quiescent ⓘ |
| stellarPopulation |
metal-poor
ⓘ
old ⓘ |
| surfaceBrightness | extremely low ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.