Leo IV Dwarf Galaxy

E497592

Leo IV Dwarf Galaxy is a faint, small satellite galaxy of the Milky Way located in the constellation Leo and classified as an ultra-faint dwarf spheroidal galaxy.

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Statements (43)

Predicate Object
instanceOf dwarf spheroidal galaxy
ultra-faint dwarf galaxy
belongsToSubgroup Milky Way dwarf spheroidal satellites
discoveredBy SDSS (Sloan Digital Sky Survey) NERFINISHED
discoveryMethod digital sky survey
hasAbsoluteMagnitudeV ~-5.5
hasAlternativeName Leo IV NERFINISHED
Leo IV dSph NERFINISHED
hasApparentMagnitudeV ~16.0
hasBaryonContent low
hasClassification ultra-faint Milky Way satellite
hasCoordinateSystem equatorial
hasDarkMatterDominance dark-matter-dominated
hasDeclination ~−00° 33′
hasDiscoveryEpoch early 21st century
hasDistanceFromEarth_kpc ~160
hasDistanceFromEarth_ly ~520000
hasDominantStellarPopulationAge_Gyr >10
hasDynamicalMassToLightRatio high
hasEnvironment outer Galactic halo
hasGalacticLatitude high
hasGalaxyType dSph
hasGasContent gas-poor
hasHalfLightRadius_pc ~130
hasHeliocentricDistance_kpc ~154
hasLuminosityClass ultra-faint
hasMetallicity_FeH ~-2.5
hasRadialVelocity_kms ~132
hasRightAscension ~11h 32m
hasShape spheroidal
hasStarFormationActivity quiescent
hasStarFormationHistory ancient burst with little recent activity
hasStellarMass_Msun ~1e4
hasStellarPopulation old, metal-poor stars
hasSurfaceBrightness very low
hasTidalInteractionWith Milky Way NERFINISHED
isGravitationallyBoundTo Milky Way NERFINISHED
isNearbyTo Leo V Dwarf Galaxy NERFINISHED
locatedInConstellation Leo NERFINISHED
memberOf Local Group NERFINISHED
observedInSurvey Sloan Digital Sky Survey NERFINISHED
follow-up deep imaging surveys
satelliteOf Milky Way NERFINISHED

Referenced by (1)

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

Milky Way subgroup hasMember Leo IV Dwarf Galaxy