Messier 69
E115653
Messier 69 is a dense, metal-rich globular star cluster located in the constellation Sagittarius near the center of the Milky Way.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Messier 69 canonical | 2 |
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Messier object
ⓘ
NGC object ⓘ globular star cluster ⓘ |
| age | about 12 billion years ⓘ |
| alsoKnownAs |
M69
ⓘ
NGC 6637 ⓘ |
| angularSize | 9.8 arcminutes ⓘ |
| apparentMagnitudeV | 7.6 ⓘ |
| belongsTo | Local Group ⓘ |
| catalog |
Messier catalogue
ⓘ
New General Catalogue ⓘ |
| catalogNumber |
M69
ⓘ
NGC 6637 ⓘ |
| constellation | Sagittarius ⓘ |
| contains |
horizontal branch stars
ⓘ
red giant stars ⓘ |
| coreRadius | about 0.55 arcminutes ⓘ |
| declination | −32° 20′ 53″ ⓘ |
| discoveredBy | Charles Messier ⓘ |
| discoveryDate | 1780 ⓘ |
| discoveryMethod | telescopic observation ⓘ |
| distanceFromEarth |
about 29,700 light-years
ⓘ
about 9.1 kiloparsecs ⓘ |
| GalacticLatitude | about −2.9 degrees ⓘ |
| GalacticLongitude | about 1.5 degrees ⓘ |
| GalacticPopulation | bulge cluster ⓘ |
| halfLightRadius | about 1.7 arcminutes ⓘ |
| hasColorIndexBminusV | about 0.84 ⓘ |
| heliocentricRadialVelocity | about −72 km/s ⓘ |
| is |
dense
ⓘ
metal-rich ⓘ |
| isPartOf |
Milky Way center
ⓘ
surface form:
Milky Way bulge
|
| locatedIn | Milky Way ⓘ |
| locatedNear |
Milky Way center
ⓘ
surface form:
Galactic center
|
| mass | about 2.0×10^5 solar masses ⓘ |
| metallicity | high ⓘ |
| metallicityFeH | about −0.6 ⓘ |
| namedAfter | Charles Messier ⓘ |
| orbitalLocation | inner regions of the Milky Way ⓘ |
| rightAscension | 18h 31m 23s ⓘ |
| ShapleySawyerConcentrationClass | V ⓘ |
| spectralType | integrated light roughly G–K ⓘ |
| surfaceBrightness | about 18 mag/arcsec^2 ⓘ |
| visibility |
best seen from southern latitudes
ⓘ
requires binoculars or a telescope ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.