NGC 4647
| NGC 4647 | |
|---|---|
NGC 4647 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 43m 32.3300s |
| Declination | +11° 34′ 58.000″ |
| Redshift | 0.004700 |
| Heliocentric radial velocity | 1,409±1 km/s |
| Distance | 57.37 ± 2.99 Mly (17.591 ± 0.918 Mpc) |
| Group or cluster | Virgo Cluster |
| Apparent magnitude (V) | 11.94 |
| Characteristics | |
| Type | SAB(rs)c |
| Size | ~78,000 ly (23.93 kpc) (estimated) |
| Apparent size (V) | 2.9′ × 2.3′ |
| Other designations | |
| KCPG 353A, VCC 1972, HOLM 448B, IRAS 12410+1151, Arp 116, UGC 7896, MCG +02-33-001, PGC 42816, CGCG 071-015, VV 206 | |
NGC 4647 is an intermediate spiral galaxy estimated to be around 63 million light-years away in the constellation of Virgo. It was discovered by German-British astronomer William Herschel on March 15, 1784. NGC 4647 is listed along with Messier 60 as being part of a pair of galaxies called Arp 116; their designation in Halton Arp's Atlas of Peculiar Galaxies. The galaxy is located on the outskirts of the Virgo Cluster.