Leo I Dwarf Galaxy

E114373

Leo I Dwarf Galaxy is a faint, spheroidal satellite galaxy of the Milky Way located in the constellation Leo and belonging to the Local Group of galaxies.

All labels observed (1)

Label Occurrences
Leo I Dwarf Galaxy canonical 3

How this entity was disambiguated

Statements (49)

Predicate Object
instanceOf Local Group member
astronomical object
dwarf spheroidal galaxy
satellite galaxy
absoluteMagnitude_V -11.9
alternateName DDO 74
Leo I
PGC 29488
UGC 5470
angularSize_arcmin 12.0
apparentMagnitude_V 11.2
containsStellarPopulation intermediate-age stars
old stars
darkMatterDominated true
declination_J2000 +12°18′30″
discoveredAt Palomar Observatory
discoveredBy Albert George Wilson
discoveryYear 1950
distanceFromEarth_kpc 250
distanceFromEarth_ly 820000
dominantStellarPopulationAge_Gyr 1-10
dynamicalMass_solarMasses 2e7
galacticLatitude_deg 49.1
galacticLongitude_deg 226.0
gasContent_HI very low
hasGlobularClusters false
hasLowSurfaceBrightness true
heliocentricRadialVelocity_km_per_s 282
isGasPoor true
isOneOfMostDistantClassicalMWSatellites true
isResolvedIntoIndividualStars true
isTidalInteractionSuspected true
lastMajorStarFormationEpoch_GyrAgo 1
locatedInConstellation Leo
massToLightRatio_solarUnits 5-10
memberOf Local Group
metallicity_Fe_H -1.4
morphologicalType dSph
observedWith Hubble Space Telescope
Very Large Telescope
orbitsWithinMilkyWayHalo true
radialVelocity_km_per_s 282
rightAscension_J2000 10h08m27s
satelliteOf Milky Way
stellarMass_solarMasses 5e6
surfaceBrightness_V_mag_per_arcsec2 ~22.4
usedToStudy Milky Way dark matter halo
surface form: Milky Way mass distribution

dark matter in dwarf galaxies
stellar populations in low-mass galaxies

How these facts were elicited

Referenced by (3)

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

Local Group contains Leo I Dwarf Galaxy
Milky Way subgroup hasMember Leo I Dwarf Galaxy
LG containsGalaxy Leo I Dwarf Galaxy