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Caldwell 20
URI:
https://gptkb.org/entity/Caldwell_20
GPTKB entity
Statements (14)
Predicate
Object
gptkbp:instanceOf
gptkb:open_cluster
gptkbp:alsoKnownAs
gptkb:NGC_1857
gptkbp:apparentMagnitude
7.0
gptkbp:cataloguedIn
gptkb:Caldwell_catalogue
gptkb:NGC_catalogue
gptkbp:declination
+39° 20′ 15″
gptkbp:discoveredBy
gptkb:William_Herschel
gptkbp:discoveredIn
1787
gptkbp:distanceFromEarth
7900 light years
https://www.w3.org/2000/01/rdf-schema#label
Caldwell 20
gptkbp:locatedIn
gptkb:constellation_Auriga
gptkbp:rightAscension
05h 20m 31s
gptkbp:bfsParent
gptkb:North_America_Nebula
gptkbp:bfsLayer
6