|Observation data (J2000 epoch)|
|Right ascension||12h 42m 52.4s|
|Declination||+13° 15′ 27″|
|Redshift||1018 ± 5 km/s|
|Group or cluster||Virgo Cluster|
|Apparent magnitude (V)||12.2|
|Apparent size (V)||2′.8 × 1′.9|
|UGC 7884, PGC 42741, VCC 1943|
NGC 4639 is a barred spiral galaxy located in the constellation Virgo. It lies over 70 million light-years away from planet Earth. Its core contains a massive black hole. NGC 4639 is also classified as a Seyfert galaxy. NGC 4639 is a member of the Virgo Cluster.
NGC 4654 is an intermediate spiral galaxy in the constellation of Virgo at a distance of 55 million light years (16.8 megaparsecs) from the Milky Way that can be spotted with amateur telescopes.Virgo (constellation)
Virgo is one of the constellations of the zodiac. Its name is Latin for virgin, and its symbol is ♍. Lying between Leo to the west and Libra to the east, it is the second-largest constellation in the sky (after Hydra) and the largest constellation in the zodiac. It can be easily found through its brightest star, Spica.