Messier 22

URI: https://gptkb.org/entity/Messier_22
GPTKB entity
Statements (32)
Predicate Object
gptkbp:instanceOf gptkb:open_cluster
gptkbp:age 12 billion years
gptkbp:alsoKnownAs gptkb:NGC_6656
gptkb:M22
gptkbp:angularSize 32 arcminutes
gptkbp:apparentMagnitude 5.1
gptkbp:bestViewedIn summer months
low latitudes
gptkbp:cataloguedIn gptkb:Charles_Messier
gptkbp:catalogueNumber 22
gptkbp:contains variable stars
X-ray sources
millisecond pulsars
over 70,000 stars
gptkbp:coreRadius 1.3 arcminutes
gptkbp:declination -23° 54′ 12″
gptkbp:discoveredBy gptkb:Abraham_Ihle
gptkbp:discoveredIn 1665
gptkbp:distanceFromEarth 10,600 light-years
gptkbp:hasViewOf gptkb:Northern_Hemisphere
gptkb:Southern_Hemisphere
gptkbp:locatedIn gptkb:constellation_Sagittarius
gptkbp:mass ~500,000 solar masses
gptkbp:metallicity [Fe/H] = -1.70
gptkbp:notableFor contains planetary nebula GJJC1
one of the brightest globular clusters
gptkbp:partOf gptkb:Milky_Way_Galaxy
gptkbp:rightAscension 18h 36m 24.2s
gptkbp:tidalRadius 17.4 arcminutes
gptkbp:bfsParent gptkb:Charles_Messier
gptkbp:bfsLayer 6
https://www.w3.org/2000/01/rdf-schema#label Messier 22