M69

E496045

M69 is a dense globular star cluster located in the constellation Sagittarius and listed in Charles Messier’s catalog of deep-sky objects.

All labels observed (1)

Label Occurrences
M69 canonical 4

How this entity was disambiguated

Statements (43)

Predicate Object
instanceOf globular star cluster
age about 12 billion years
angularSize about 9.8 arcminutes
apparentMagnitudeV about 7.7
belongsToCatalog Messier catalogue
New General Catalogue
bestObservedIn July
bestSeenFromHemisphere Southern Hemisphere
catalogCode GCl 95
Messier 69
NGC 6637
contains old stars
coreConcentration high
coreRadius about 0.5 arcminutes
declination −32° 21′
discoveredBy Charles Messier
discoveredInCentury 18th century
discoveryDate August 31, 1780
discoveryInstrument refracting telescope
distanceFromEarth about 29,000 light-years
distanceFromGalacticCenter about 6,500 light-years
galacticEnvironment inner Milky Way
galacticLatitude low
galacticPopulation Population II
halfLightRadius about 1.7 arcminutes
hasAlternativeName M 69
Messier 69
hasHigh interstellar extinction
is dense globular cluster
isPartOf Sagittarius constellation region
linked to: Sagittarius
locatedIn Galactic bulge region
linked to: Milky Way center

Milky Way
locatedInConstellation Sagittarius
locatedNear M70
metallicity relatively high
metallicityFeH about −0.6
namedAfter Charles Messier
observedInWavelength infrared
optical
rightAscension 18h 31m
ShapleySawyerConcentrationClass V
visibilityToNakedEye not visible
visibleWith small telescope

How these facts were elicited

Referenced by (4)

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