GCl 117

E507132

GCl 117 is a dense globular star cluster in the constellation Sagittarius, better known as Messier 75 in the Messier catalog.

All labels observed (1)

Label Occurrences
GCl 117 canonical 1

How this entity was disambiguated

Statements (39)

Predicate Object
instanceOf globular star cluster ⓘ
absoluteMagnitudeV about −8.5 ⓘ
addedToMessierCatalogueBy Charles Messier ⓘ
age ~13 billion years ⓘ
angularSize 6.8 arcminutes ⓘ
apparentMagnitudeV 8.6 ⓘ
belongsToGalaxy Milky Way ⓘ
bestViewingHemisphere Southern Hemisphere ⓘ
low southern skies from Northern Hemisphere ⓘ
bestViewingSeason summer ⓘ
catalogCode GCl 117 ⓘ
concentrationClass I ⓘ
contains old, metal-poor stars ⓘ
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 12.19° ⓘ
hasAlternativeName M75 ⓘ
Messier 75 ⓘ
NGC 6864 ⓘ
hasColorIndexBminusV about 0.76 ⓘ
hasMorphology highly concentrated core ⓘ
isCoreCollapsed true ⓘ
isPartOf Messier catalogue ⓘ
New General Catalogue ⓘ
locatedIn Milky Way halo ⓘ
locatedInConstellation Sagittarius ⓘ
messierNumber 75 ⓘ
metallicityFeH about −1.3 ⓘ
ngcNumber 6864 ⓘ
notes one of the most centrally concentrated globular clusters known ⓘ
radialVelocity ~−186 km/s ⓘ
rightAscension 20h 06m 04s ⓘ
shapleySawyerClass I ⓘ
visibility best seen with medium to large amateur telescopes ⓘ

How these facts were elicited

Referenced by (1)

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

Messier 75 → otherName → GCl 117 ⓘ