Statements (16)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:open_cluster | 
| gptkbp:alternativeName | gptkb:OCL_617 Collinder 178 Melotte 81 | 
| gptkbp:angularSize | 15 arcminutes | 
| gptkbp:apparentMagnitude | 6.5 | 
| gptkbp:declination | -12° 50′ 00″ | 
| gptkbp:discoveredBy | gptkb:William_Herschel | 
| gptkbp:discoveredIn | February 1785 | 
| gptkbp:distanceFromEarth | 4,240 light-years | 
| gptkbp:epoch | gptkb:J2000 | 
| gptkbp:locatedIn | constellation Puppis | 
| gptkbp:rightAscension | 08h 10m 37s | 
| gptkbp:bfsParent | gptkb:Puppis | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | NGC 2539 |