NGC 7099
E869023
NGC 7099 is a dense globular star cluster in the constellation Capricornus, notable for its age, brightness, and rich population of ancient stars.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | globular cluster ⓘ |
| absoluteMagnitudeV | about −8.3 ⓘ |
| age | about 12.9 billion years ⓘ |
| alsoKnownAs |
M30
NERFINISHED
ⓘ
Messier 30 NERFINISHED ⓘ |
| angularSize | 12 arcminutes ⓘ |
| apparentMagnitudeV | 7.2 ⓘ |
| appearsAs | bright compact globular cluster ⓘ |
| belongsTo | outer halo globular cluster system of the Milky Way ⓘ |
| bestObservedFrom | Southern Hemisphere NERFINISHED ⓘ |
| bestObservedIn |
August
ⓘ
September ⓘ |
| catalog |
Messier catalogue
NERFINISHED
ⓘ
New General Catalogue NERFINISHED ⓘ |
| constellation | Capricornus NERFINISHED ⓘ |
| contains |
RR Lyrae variables
NERFINISHED
ⓘ
blue straggler stars ⓘ horizontal branch stars ⓘ red giant branch stars ⓘ variable stars ⓘ |
| coreCollapseStatus | core-collapsed ⓘ |
| coreConcentration | high ⓘ |
| declination | −23° 10′ 47″ ⓘ |
| discoveredBy | Charles Messier NERFINISHED ⓘ |
| discoveryDate | 1764 ⓘ |
| distanceFromEarth |
about 27,000 light-years
ⓘ
about 8.3 kiloparsecs ⓘ |
| galacticLatitude | −23.18 degrees ⓘ |
| galacticLongitude | 27.18 degrees ⓘ |
| galacticPopulation | Population II stars ⓘ |
| hasColorIndexBminusV | about 0.71 ⓘ |
| locatedIn |
Galactic halo
ⓘ
Milky Way ⓘ |
| mass | on the order of 10^5 solar masses ⓘ |
| metallicity | low ⓘ |
| metallicityFeH | about −2.3 ⓘ |
| morphologicalType | concentrated globular cluster ⓘ |
| notableFor |
ancient stellar population
ⓘ
dense core ⓘ low metallicity ⓘ |
| observedBy |
Gaia spacecraft
NERFINISHED
ⓘ
Hubble Space Telescope NERFINISHED ⓘ |
| partOf | Local Group NERFINISHED ⓘ |
| radialVelocity | about −181 km/s ⓘ |
| rightAscension | 21h 40m 22s ⓘ |
| skyLocation | near the star Zeta Capricorni ⓘ |
| surfaceBrightness | high ⓘ |
| visibleWith | small telescope ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.