Draco Dwarf Galaxy

E124967

Draco Dwarf Galaxy is a faint, spheroidal satellite galaxy of the Milky Way, notable for its high dark matter content and very low rate of star formation.

All labels observed (1)

Label Occurrences
Draco Dwarf Galaxy canonical 3

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf Local Group galaxy
dwarf spheroidal galaxy
satellite galaxy
absoluteMagnitude_V -8.8
alternativeName DDO 208
Draco dSph
PGC 61031
UGC 10822
angularSize_arcmin 35
apparentMagnitude_V 10.9
belongsTo Local Group
contains RR Lyrae variable stars
surface form: RR Lyrae variables

horizontal branch stars
red giant branch stars
currentStarFormation negligible
darkMatterContent very high
declination_J2000 +57° 55′
discoveredBy Albert George Wilson
discoveryYear 1954
distanceFromEarth_ly 260000
distanceFromMilkyWayCenter_ly 250000
dominantStellarPopulation Population II stars
dominantStellarPopulationAge_Gyr >10
galaxyType dwarf spheroidal
gasContent very low
gasRich false
hasTidalInteractionWith Milky Way
hostGalaxy Milky Way
isMemberOf Milky Way
surface form: Milky Way satellite system
locatedInConstellation Draco
majorAxis_arcmin 35
massToLightRatio_solar ~300
metallicity_Fe_H -1.9
minorAxis_arcmin 24
morphologicalType dSph
neutralHydrogenContent extremely low
orbitalStatus bound satellite of the Milky Way
radialVelocity_km_s -293
rightAscension_J2000 17h 20m
satelliteOf Milky Way
shape spheroidal
starFormationRate very low
stellarMass_solar ~3e5
stellarPopulation old, metal-poor stars
surfaceBrightness very low
totalDynamicalMass_solar ~1e7
usedAs laboratory for dark matter studies
testbed for galaxy formation models

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 Draco Dwarf Galaxy
Milky Way subgroup hasMember Draco Dwarf Galaxy
LG containsGalaxy Draco Dwarf Galaxy