globular cluster Messier 92
E922161
Globular cluster Messier 92 is a bright, compact, and very old spherical star cluster in the constellation Hercules, notable as one of the Milky Way’s most luminous and metal-poor globular clusters.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Messier 92 | 0 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Milky Way globular cluster
ⓘ
deep-sky object ⓘ globular cluster ⓘ |
| absoluteMagnitudeV | about −8.2 ⓘ |
| age |
about 13 billion years
ⓘ
on the order of the age of the Universe ⓘ |
| alsoKnownAs |
M92
NERFINISHED
ⓘ
NGC 6341 NERFINISHED ⓘ |
| angularSize | about 14 arcminutes ⓘ |
| apparentMagnitudeV | about 6.3 ⓘ |
| bestSeenIn |
northern spring
ⓘ
northern summer ⓘ |
| cataloguedBy | Charles Messier NERFINISHED ⓘ |
| celestialCategory | globular cluster ⓘ |
| concentrationClass | IV ⓘ |
| contains |
RR Lyrae variable stars
NERFINISHED
ⓘ
blue straggler stars ⓘ |
| coreDescription | bright and compact core ⓘ |
| coreRadius | about 0.26 arcminutes ⓘ |
| declination | +43° 08′ 11″ ⓘ |
| discoveredBy | Johann Elert Bode NERFINISHED ⓘ |
| discoveryDate | 1777 ⓘ |
| distanceFromEarth |
about 26,700 light-years
ⓘ
about 8.2 kiloparsecs ⓘ |
| distanceFromGalacticCenter | about 9.6 kiloparsecs ⓘ |
| epoch | J2000 ⓘ |
| galacticComponent | Galactic halo NERFINISHED ⓘ |
| galacticLatitude | +34.9 degrees ⓘ |
| galacticLongitude | 68.3 degrees ⓘ |
| halfLightRadius | about 1.0 arcminutes ⓘ |
| locatedInConstellation | Hercules NERFINISHED ⓘ |
| luminosity | about 3×10^5 times the Sun ⓘ |
| mass | about 3×10^5 solar masses ⓘ |
| memberOf | Milky Way NERFINISHED ⓘ |
| messierNumber | 92 ⓘ |
| metallicityClass | metal-poor ⓘ |
| metallicityFeH | about −2.3 ⓘ |
| nearbyOnSky | north of the star Eta Herculis ⓘ |
| ngcNumber | 6341 ⓘ |
| notableFor |
high luminosity among Milky Way globular clusters
ⓘ
very low metallicity ⓘ |
| orbitType | halo orbit around the Milky Way ⓘ |
| rightAscension | 17h 17m 07.4s ⓘ |
| shape | spherical ⓘ |
| ShapleySawyerConcentrationClass | IV ⓘ |
| stellarPopulation | Population II ⓘ |
| visibility |
barely visible to the naked eye under very dark skies
ⓘ
visible in small telescopes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.