NGC 6864

E526256

NGC 6864 is a dense globular star cluster in the constellation Sagittarius, notable for its rich stellar population and classification as Messier 75 in Charles Messier’s catalog.

All labels observed (1)

Label Occurrences
NGC 6864 canonical 4

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf globular star cluster ⓘ
absoluteMagnitudeV −8.5 ⓘ
age ~13 billion years ⓘ
alsoKnownAs M75 ⓘ
Messier 75 ⓘ
angularSize 6.8 arcminutes ⓘ
apparentMagnitudeRange 8–9 ⓘ
apparentMagnitudeV 8.6 ⓘ
belongsTo Galactic globular cluster system ⓘ
bestSeenFromHemisphere Southern Hemisphere ⓘ
bestSeenInSeason summer ⓘ
catalog New General Catalogue ⓘ
concentrationClass I ⓘ
coreConcentration high ⓘ
declination −21° 55′ 17″ ⓘ
discoveredBy Pierre Méchain ⓘ
discoveryYear 1780 ⓘ
distanceFromEarth ~20.7 kiloparsecs ⓘ
~67,500 light-years ⓘ
galacticLatitude −25.75° ⓘ
galacticLongitude 12.18° ⓘ
hasAlternativeDesignation GCl 116 ⓘ
Melotte 222 ⓘ
hasCentralDensity very high ⓘ
hasRichStellarPopulation true ⓘ
hasStellarPopulation Population II stars ⓘ
hostGalaxy Milky Way ⓘ
includedInCatalog Messier catalogue ⓘ
NGC catalogue ⓘ
isDenseCluster true ⓘ
isNotableFor classification as Messier 75 ⓘ
high central concentration ⓘ
rich stellar population ⓘ
locatedIn Milky Way ⓘ
Milky Way halo ⓘ
locatedInConstellation Sagittarius ⓘ
mass several hundred thousand solar masses ⓘ
messierNumber 75 ⓘ
metallicityFeH −1.29 ⓘ
observedInWavelength infrared ⓘ
optical ⓘ
radialVelocity ~−190 km/s ⓘ
rightAscension 20h 06m 05s ⓘ
shapleySawyerClass I ⓘ
skyLocation near the border of Sagittarius and Capricornus ⓘ
visibleWith small telescope ⓘ

How these facts were elicited

Referenced by (4)

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

Messier 75 → otherName → NGC 6864 ⓘ
M75 → alsoKnownAs → NGC 6864 ⓘ
M75 → catalogDesignation → NGC 6864 ⓘ
GCl 117 → hasAlternativeName → NGC 6864 ⓘ