Statements (18)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:open_cluster
|
gptkbp:age |
21 million years
|
gptkbp:apparentMagnitude |
6.4
|
gptkbp:bestViewedIn |
autumn
|
gptkbp:contains |
gptkb:HD_7902
gptkb:Phi_Cassiopeiae |
gptkbp:declination |
+58° 20′ 00″
|
gptkbp:discoveredBy |
gptkb:William_Herschel
|
gptkbp:discoveredIn |
1787
|
gptkbp:distanceFromEarth |
7900 light years
|
https://www.w3.org/2000/01/rdf-schema#label |
Owl Cluster
|
gptkbp:locatedIn |
constellation Cassiopeia
|
gptkbp:otherName |
gptkb:NGC_457
gptkb:Caldwell_13 |
gptkbp:rightAscension |
01h 19m 34s
|
gptkbp:visibleToNakedEye |
yes
|
gptkbp:bfsParent |
gptkb:NGC_457
|
gptkbp:bfsLayer |
7
|