Ursa Major I Dwarf Galaxy
E482824
Ursa Major I Dwarf Galaxy is a faint, dark-matter-dominated dwarf spheroidal satellite galaxy orbiting the Milky Way in the constellation Ursa Major.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
dark-matter-dominated galaxy
ⓘ
dwarf spheroidal galaxy ⓘ satellite galaxy ⓘ ultra-faint dwarf galaxy ⓘ |
| absoluteMagnitude_V | -5.5 ⓘ |
| alternativeName |
UMa I dSph
NERFINISHED
ⓘ
Ursa Major I NERFINISHED ⓘ |
| apparentMagnitude_V | 17.5 ⓘ |
| belongsTo | Milky Way halo ⓘ |
| contains |
horizontal branch stars
ⓘ
old metal-poor stars ⓘ red giant branch stars ⓘ |
| coordinateSystem | equatorial ⓘ |
| darkMatterDominated | true ⓘ |
| declination | +51°55′12″ ⓘ |
| discoveredBy | Beth Willman NERFINISHED ⓘ |
| discoveredUsing | Sloan Digital Sky Survey NERFINISHED ⓘ |
| discoveryMethod | digital sky survey ⓘ |
| discoveryYear | 2005 ⓘ |
| distanceFromEarth_kpc | 100 ⓘ |
| distanceFromEarth_ly | 330000 ⓘ |
| dominantStellarPopulationAge_Gyr | >10 ⓘ |
| galaxyType | dSph ⓘ |
| gasContent | gas-poor ⓘ |
| halfLightRadius_arcmin | 11 ⓘ |
| halfLightRadius_pc | 300 ⓘ |
| hasMorphology | spheroidal ⓘ |
| heliocentricRadialVelocity_kmPerS | -55 ⓘ |
| hostGalaxy | Milky Way NERFINISHED ⓘ |
| hostGalaxyType | barred spiral galaxy ⓘ |
| isExampleOf | low-luminosity dwarf spheroidal galaxy ⓘ |
| isOneOf | ultra-faint Milky Way satellites ⓘ |
| locatedInConstellation | Ursa Major NERFINISHED ⓘ |
| massToLightRatio_solar | 1500 ⓘ |
| memberOf | Local Group NERFINISHED ⓘ |
| metallicity_FeH | -2.0 ⓘ |
| orbitalStatus | bound satellite of the Milky Way ⓘ |
| rightAscension | 10h34m52s ⓘ |
| satelliteOf | Milky Way NERFINISHED ⓘ |
| skyLocation | northern celestial hemisphere ⓘ |
| starFormationActivity | quiescent ⓘ |
| stellarMass_solarMass | 10000 ⓘ |
| stellarPopulation | old ⓘ |
| surfaceBrightness_V_magPerArcsec2 | ~27.5 ⓘ |
| totalMass_solarMass | 200000000 ⓘ |
| usedToStudy |
dark matter distribution on small scales
ⓘ
galaxy formation in the Local Group ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.