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 (4)

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

How these facts were elicited

Referenced by (10)

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
Leo I alternativeName Leo I Dwarf Galaxy
UGC 5470 alsoKnownAs Leo I Dwarf Galaxy
UGC 5470 belongsTo Leo I Group of Milky Way satellites
linked to: Leo I Dwarf Galaxy
DDO 74 alsoKnownAs Leo I Dwarf Galaxy
DDO 74 hasAlternativeName Leo I Dwarf Spheroidal Galaxy
linked to: Leo I Dwarf Galaxy
Albert George Wilson discovered Leo I Dwarf Galaxy
Local Group contains Leo I dwarf galaxy
subject linked to: Local Group galaxies
linked to: Leo I Dwarf Galaxy