Cetus dSph

E563945

Cetus dSph is a faint dwarf spheroidal galaxy in the constellation Cetus that is a satellite of the Milky Way and notable for its old, metal-poor stellar population.

All labels observed (2)

Label Occurrences
Cetus dSph canonical 1
Cetus dSph galaxy 1

How this entity was disambiguated

Statements (44)

Predicate Object
instanceOf dwarf spheroidal galaxy
discoveredBy Alan Whiting
George Hau
linked to: George K. T. Hau

Mike Irwin
discoveryYear 1999
hasAbsoluteMagnitudeV ~−11.3
hasAlternativeName Cetus dSph galaxy
linked to: Cetus dSph

Cetus dwarf
Cetus dwarf spheroidal galaxy
linked to: Cetus Dwarf Galaxy
hasApparentMagnitudeV ~14.5
hasCoordinateEpoch J2000
hasDarkMatterDominance high
hasDeclination −11°
hasDistanceFromEarth_ly ~2600000
hasDistanceFromMilkyWayCenter_ly ~2600000
hasDominantStellarPopulationAge_Gyr >10
hasEnvironment isolated Milky Way satellite
hasGalaxyColor red
hasGalaxyMorphologicalType dSph
hasGalaxyType early-type dwarf
hasGasContent gas-poor
hasGlobularClusters none known
hasHalfLightRadius_pc ~300
hasHeliocentricRadialVelocity_km_s ~−87
hasKinematicProperty pressure-supported
hasLuminosityClass dwarf
hasMetallicity_Fe_H ~−1.9
hasNeutralHydrogenContent very low
hasObservationWavelength near-infrared
optical
hasRightAscension 00h 26m
hasShape spheroidal
hasStarFormationActivity quiescent
hasStarFormationHistory early burst followed by long quiescence
hasStellarPopulation metal-poor
old
hasStellarPopulationGradient present
hasSurfaceBrightness low
locatedInConstellation Cetus
memberOf Local Group
satelliteOf Milky Way
studiedFor ancient stellar populations
dark matter content in dwarf spheroidals
dwarf galaxy evolution

How these facts were elicited

Referenced by (2)

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

Cetus dSph hasAlternativeName Cetus dSph galaxy
linked to: Cetus dSph