M75

E505235

M75 is a densely concentrated globular star cluster in the constellation Sagittarius, cataloged by Charles Messier.

All labels observed (2)

Label Occurrences
M75 canonical 2
M 75 1

How this entity was disambiguated

Statements (41)

Predicate Object
instanceOf globular star cluster
absoluteMagnitudeV about −8.5
addedToMessierCatalogBy Charles Messier
age ~13 billion years
alsoKnownAs GCl 118
Messier 75
NGC 6864
angularSize 6.8 arcminutes
apparentMagnitudeRange about 8.5–9.0
apparentMagnitudeV 8.6
catalogDesignation GCl 118
M 75
linked to: M75

Messier 75
NGC 6864
catalogedBy Charles Messier
colorIndexBminusV 0.76
concentrationClass I
coreConcentration very high
declination −21° 55′ 17″
discoveredBy Pierre Méchain
discoveryYear 1780
distanceFromEarth ~20.7 kiloparsecs
~67,500 light-years
distanceFromGalacticCenter ~14.7 kiloparsecs
galacticLatitude −25.75°
galacticLongitude 8.55°
hasCoreRadius ~0.5 arcminutes
hasHalfLightRadius ~0.9 arcminutes
hasMorphologicalType globular cluster
hostGalaxy Milky Way
locatedIn Milky Way halo
constellation Sagittarius
locatedInConstellation Sagittarius
metallicity low
metallicityFeH −1.29
notes one of the most centrally concentrated globular clusters known
radialVelocity −186 km/s
rightAscension 20h 06m 05.1s
ShapleySawyerConcentrationClass I
stellarPopulation Population II
visibility best seen with medium to large amateur telescopes

How these facts were elicited

Referenced by (3)

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

Messier 75 otherName M75
M75 catalogDesignation M 75
linked to: M75
NGC 6864 alsoKnownAs M75