Leo I

E491704

Leo I is a faint dwarf spheroidal galaxy and satellite of the Milky Way located in the constellation Leo.

All labels observed (1)

Label Occurrences
Leo I canonical 5

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf dwarf spheroidal galaxy ⓘ
absoluteMagnitudeV ~−12 ⓘ
alternativeName Leo Dwarf Spheroidal ⓘ
Leo I Dwarf Galaxy ⓘ
angularSize_arcmin ~12×10 ⓘ
apparentMagnitudeV ~11.2 ⓘ
belongsTo Milky Way halo ⓘ
catalogDesignation DDO 74 ⓘ
Leo Dwarf ⓘ
PGC 34176 ⓘ
UGC 5470 ⓘ
contains horizontal branch stars ⓘ
old red giant branch stars ⓘ
coordinateSystem equatorial ⓘ
darkMatterDominated true ⓘ
declination +12° 18′ ⓘ
discoveredBy Albert George Wilson ⓘ
discoveryMethod photographic survey ⓘ
discoverySite Palomar Observatory ⓘ
discoveryYear 1950 ⓘ
distanceFromEarth_kpc ~250 ⓘ
distanceFromEarth_ly ~820000 ⓘ
galacticEnvironment outer halo of the Milky Way ⓘ
galacticLatitude high ⓘ
galaxyType dwarf spheroidal ⓘ
gasContent very low ⓘ
hasNucleus no distinct nucleus ⓘ
interactionWithMilkyWay tidal effects likely ⓘ
lastMajorStarFormationEpoch ~1–2 billion years ago ⓘ
locatedInConstellation Leo ⓘ
mass_solarMasses ~2×10^7 ⓘ
memberOf Local Group ⓘ
metallicity low ⓘ
namedAfter constellation Leo ⓘ
observableFromHemisphere Northern Hemisphere ⓘ
observedIn infrared wavelengths ⓘ
optical wavelengths ⓘ
radialVelocity_kmPerSec ~285 ⓘ
redshift_z ~0.00095 ⓘ
rightAscension 10h 08m ⓘ
satelliteOf Milky Way ⓘ
shape spheroidal ⓘ
starFormationActivity quiescent ⓘ
stellarPopulation old stars dominant ⓘ
surfaceBrightness very low ⓘ
visibility requires telescope ⓘ

How these facts were elicited

Referenced by (5)

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

UGC 5470 → alsoKnownAs → Leo I ⓘ
DDO 74 → alsoKnownAs → Leo I ⓘ
Leo I Dwarf Galaxy → alsoKnownAs → Leo I ⓘ
subject linked to: Albert George Wilson
Tarasis → predecessor → Leo I ⓘ