M39

URI: https://gptkb.org/entity/M39
GPTKB entity
Statements (23)
Predicate Object
gptkbp:instanceOf gptkb:open_cluster
gptkbp:age ~300 million years
gptkbp:alsoKnownAs gptkb:Messier_39
gptkbp:angularSize 29 arcminutes
gptkbp:apparentMagnitude 4.6
gptkbp:bestViewedIn astronomer
gptkbp:cataloguedIn gptkb:Charles_Messier
gptkbp:catalogueNumber gptkb:Messier_39
gptkbp:declination +48° 26′ 00″
gptkbp:discoveredBy gptkb:Guillaume_Le_Gentil
gptkbp:discoveredIn 1749
gptkbp:distanceFromEarth ~800 light years
gptkbp:hasViewOf gptkb:Northern_Hemisphere
https://www.w3.org/2000/01/rdf-schema#label M39
gptkbp:locatedIn gptkb:constellation_Cygnus
gptkbp:NGCNumber gptkb:NGC_7092
gptkbp:partOf gptkb:Messier_Catalogue
gptkb:New_General_Catalogue
gptkbp:rating ~30
gptkbp:rightAscension 21h 31m 48s
gptkbp:bfsParent gptkb:Jambyl_Region
gptkb:Voigtländer_Bessa_L
gptkbp:bfsLayer 6