NGC 4639
E525085
NGC 4639 is a barred spiral galaxy in the constellation Virgo that hosts an active galactic nucleus and lies on the outskirts of the Virgo Cluster.
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
Seyfert galaxy
ⓘ
active galaxy ⓘ barred spiral galaxy ⓘ |
| discoveredBy | William Herschel NERFINISHED ⓘ |
| discoveryDate | 1784 ⓘ |
| hasActiveGalacticNucleusType | Seyfert 1 NERFINISHED ⓘ |
| hasActiveNucleus | true ⓘ |
| hasAngularSize | 2.9′ × 2.5′ ⓘ |
| hasApparentMagnitudeV | 11.5 ⓘ |
| hasBarStructure | true ⓘ |
| hasDeclination | +13° 15′ 27″ ⓘ |
| hasDistance |
~21.5 Mpc
ⓘ
~70 million light-years ⓘ |
| hasEquatorialCoordinateSystem | J2000 ⓘ |
| hasGalaxyClusterEnvironment | cluster outskirts ⓘ |
| hasGalaxyTypeCode | SAB(rs)bc ⓘ |
| hasHostGalaxyBar | weak bar ⓘ |
| hasHubbleStage | bc ⓘ |
| hasInclination | moderately inclined to line of sight ⓘ |
| hasLowLuminosityAGN | true ⓘ |
| hasMorphologicalType | SAB(rs)bc ⓘ |
| hasNGCNumber | 4639 ⓘ |
| hasNuclearActivity | broad emission lines ⓘ |
| hasRadialVelocity | 1018 km/s ⓘ |
| hasRedshift | 0.003395 ⓘ |
| hasRightAscension | 12h 42m 52.4s ⓘ |
| hasRingStructure | true ⓘ |
| hasStarFormation | ongoing in spiral arms ⓘ |
| hasSupermassiveBlackHole | true ⓘ |
| isCatalogedAs |
PGC 42741
NERFINISHED
ⓘ
UGC 7884 NERFINISHED ⓘ |
| isCatalogedIn | New General Catalogue NERFINISHED ⓘ |
| isInSupercluster | Virgo Supercluster NERFINISHED ⓘ |
| isPartOf | Virgo constellation region of the sky ⓘ |
| liesOnOutskirtsOf | Virgo Cluster NERFINISHED ⓘ |
| locatedInConstellation | Virgo NERFINISHED ⓘ |
| memberOf | Virgo Cluster NERFINISHED ⓘ |
| observedBy | Hubble Space Telescope NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.