Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:open_cluster
|
| gptkbp:age |
21 million years
|
| gptkbp:alsoKnownAs |
gptkb:NGC_457
gptkb:ET_Cluster gptkb:Owl_Cluster |
| gptkbp:angularSize |
13 arcminutes
|
| gptkbp:apparentMagnitude |
6.4
|
| gptkbp:bestViewedIn |
autumn
|
| gptkbp:catalogue |
gptkb:Caldwell_catalogue
gptkb:NGC_catalogue |
| gptkbp:constellation |
gptkb:Cassiopeia
|
| gptkbp:declination |
+58° 20′ 00″
|
| gptkbp:discoveredBy |
gptkb:William_Herschel
|
| gptkbp:discoveredIn |
1787
|
| gptkbp:distanceFromEarth |
7900 light-years
|
| gptkbp:hasViewOf |
gptkb:Northern_Hemisphere
|
| gptkbp:notableActor |
gptkb:HD_7902
gptkb:Phi_Cassiopeiae |
| gptkbp:rating |
about 150
|
| gptkbp:rightAscension |
01h 19m 33s
|
| gptkbp:bfsParent |
gptkb:NGC_457
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Caldwell 13
|