M75
E505235
M75 is a densely concentrated globular star cluster in the constellation Sagittarius, cataloged by Charles Messier.
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf | globular star cluster ⓘ |
| absoluteMagnitudeV | about −8.5 ⓘ |
| addedToMessierCatalogBy | Charles Messier NERFINISHED ⓘ |
| age | ~13 billion years ⓘ |
| alsoKnownAs |
GCl 118
ⓘ
Messier 75 NERFINISHED ⓘ NGC 6864 NERFINISHED ⓘ |
| angularSize | 6.8 arcminutes ⓘ |
| apparentMagnitudeRange | about 8.5–9.0 ⓘ |
| apparentMagnitudeV | 8.6 ⓘ |
| catalogDesignation |
GCl 118
ⓘ
M 75 NERFINISHED ⓘ Messier 75 NERFINISHED ⓘ NGC 6864 NERFINISHED ⓘ |
| catalogedBy | Charles Messier NERFINISHED ⓘ |
| colorIndexBminusV | 0.76 ⓘ |
| concentrationClass | I ⓘ |
| coreConcentration | very high ⓘ |
| declination | −21° 55′ 17″ ⓘ |
| discoveredBy | Pierre Méchain NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| locatedIn |
Milky Way halo
NERFINISHED
ⓘ
constellation Sagittarius NERFINISHED ⓘ |
| locatedInConstellation | Sagittarius NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| visibility | best seen with medium to large amateur telescopes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.