Statements (22)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:galaxy | 
| gptkbp:apparentMagnitude | 11.5 | 
| gptkbp:catalogueNumber | gptkb:NGC_4639 PGC 42741 UGC 7884 VCC 1943 | 
| gptkbp:declination | +13° 15′ 29″ | 
| gptkbp:diameter | ~60,000 light-years | 
| gptkbp:discoveredBy | gptkb:William_Herschel | 
| gptkbp:discoveredIn | April 12, 1784 | 
| gptkbp:distanceFromEarth | 72 million light-years | 
| gptkbp:hasActiveNucleus | yes | 
| gptkbp:hasNucleus | Seyfert 1 | 
| gptkbp:hasSupernova | SN 1990N | 
| gptkbp:locatedIn | gptkb:Virgo_constellation | 
| gptkbp:morphologicalType | SAB(rs)bc | 
| gptkbp:partOf | gptkb:Virgo_Cluster | 
| gptkbp:redshift | 0.003395 | 
| gptkbp:rightAscension | 12h 42m 52.4s | 
| gptkbp:bfsParent | gptkb:Virgo_I_Cluster | 
| gptkbp:bfsLayer | 8 | 
| https://www.w3.org/2000/01/rdf-schema#label | NGC 4639 |