NGC 6626

E524772

NGC 6626 is a bright globular star cluster in the constellation Sagittarius, notable for its dense concentration of ancient stars and its inclusion in Charles Messier’s catalog as Messier 28.

All labels observed (1)

Label Occurrences
NGC 6626 canonical 5

How this entity was disambiguated

Statements (45)

Predicate Object
instanceOf globular star cluster ⓘ
age ~12 billion years ⓘ
angularSize 11.2 arcminutes ⓘ
apparentMagnitudeV 6.9 ⓘ
belongsTo Sagittarius region of the sky ⓘ
bestObservedWith small telescope ⓘ
bestSeenIn summer ⓘ
catalog Messier catalogue ⓘ
New General Catalogue ⓘ
concentrationClass V ⓘ
contains X-ray sources ⓘ
blue straggler stars ⓘ
millisecond pulsars ⓘ
coreConcentration high ⓘ
declination −24° 52′ ⓘ
discoveredBy Charles Messier ⓘ
discoveryYear 1764 ⓘ
distanceFromEarth ~18,000 light-years ⓘ
~5.5 kiloparsecs ⓘ
galacticLatitude −5.58° ⓘ
galacticLongitude 7.80° ⓘ
hasAbsoluteMagnitudeV ~−8.2 ⓘ
hasAlternateName C 1821-249 ⓘ
GCl 99 ⓘ
hasColorIndexBminusV ~0.7 ⓘ
hasCoreCollapse true ⓘ
hasDesignation M28 ⓘ
Messier 28 ⓘ
hasHalfLightRadius ~1.2 arcminutes ⓘ
hasMass ~2×10^5 solar masses ⓘ
hasRadialVelocity ~+13 km/s ⓘ
hasStellarPopulation Population II stars ⓘ
hasVariableStars RR Lyrae variables ⓘ
isNotableFor dense concentration of ancient stars ⓘ
inclusion in Charles Messier’s catalog ⓘ
isVisibleFrom Southern Hemisphere ⓘ
low northern latitudes ⓘ
locatedIn Galactic bulge region ⓘ
linked to: Milky Way center
locatedInConstellation Sagittarius ⓘ
memberOf Milky Way globular cluster system ⓘ
metallicity [Fe/H] ≈ −1.3 ⓘ
observedBy Chandra X-ray Observatory ⓘ
Hubble Space Telescope ⓘ
partOf Milky Way ⓘ
rightAscension 18h 24m ⓘ

How these facts were elicited

Referenced by (5)

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

Messier 28 → otherName → NGC 6626 ⓘ
Messier 28 → catalogNumber → NGC 6626 ⓘ
GCl 99 → alsoKnownAs → NGC 6626 ⓘ
M28 → hasAlternativeName → NGC 6626 ⓘ
M28 → catalogCode → NGC 6626 ⓘ