M30

E867066

M30 is a globular star cluster in the constellation Capricornus, notable for its dense core and great age.

All labels observed (1)

Label Occurrences
M30 canonical 2

How this entity was disambiguated

Statements (45)

Predicate Object
instanceOf globular star cluster ⓘ
absoluteMagnitudeV about −8.3 ⓘ
age about 12.9 billion years ⓘ
alsoKnownAs Messier 30 ⓘ
NGC 7099 ⓘ
angularSize 11.0 arcminutes ⓘ
apparentMagnitudeV 7.2 ⓘ
belongsTo Local Group ⓘ
Milky Way globular cluster system ⓘ
bestSeenFromHemisphere Southern Hemisphere ⓘ
bestSeenInMonth August ⓘ
catalog Messier catalogue ⓘ
New General Catalogue ⓘ
catalogNumber M30 ⓘ
NGC 7099 ⓘ
contains blue straggler stars ⓘ
old stars ⓘ
variable stars ⓘ
coreCollapseStatus core-collapsed ⓘ
coreConcentration high ⓘ
declination −23° 10′ 47″ ⓘ
discoveredBy Charles Messier ⓘ
discovererNationality French ⓘ
discoveryDate 1764 ⓘ
distanceFromEarth about 27,000 light-years ⓘ
about 8.3 kiloparsecs ⓘ
galacticLatitude −46.84° ⓘ
galacticLongitude 27.18° ⓘ
galacticPopulation Population II ⓘ
hasColorIndexBminusV about 0.71 ⓘ
hasCore dense core ⓘ
hasHalfLightRadius about 1.0 arcminutes ⓘ
hasShape roughly spherical ⓘ
hasTidalRadius about 18.3 arcminutes ⓘ
locatedIn Galactic halo ⓘ
Milky Way ⓘ
locatedInConstellation Capricornus ⓘ
metallicityFeH about −2.3 ⓘ
observedWith amateur telescopes ⓘ
resolvableInTelescope yes ⓘ
rightAscension 21h 40m 22s ⓘ
spectralTypeDominant G-type giants ⓘ
surfaceBrightness high for a globular cluster ⓘ
visibilityInBinoculars visible as fuzzy patch ⓘ
visibilityToNakedEye not visible to naked eye ⓘ

How these facts were elicited

Referenced by (2)

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

Messier 30 → alsoKnownAs → M30 ⓘ
NGC 7099 → alsoKnownAs → M30 ⓘ