| NGC 4647 | |
|---|---|
 Hubble image of the galaxy NGC 4647. | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 43m 32.3s[1] |
| Declination | 11° 34′ 55″[1] |
| Redshift | 0.004700/1409 km/s[1] |
| Distance | 63 Mly (estimated) |
| Group or cluster | Virgo Cluster |
| Apparent magnitude (V) | 11.94[1] |
| Characteristics | |
| Type | SAB(rs)c[1] |
| Size | ~90,000 ly (estimated) |
| Apparent size (V) | 2.9 x 2.3[1] |
| Other designations | |
| Arp 116, CGCG 71-15, IRAS 12410+1151, KCPG 353A, MCG 2-33-1, PGC 42816, UGC 7896, V V 206, VCC 1972[1] | |
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NGC 4647 is an intermediate spiral galaxy estimated to be around 63 million light-years away[2] in the constellation of Virgo.[3] It was discovered by astronomer William Herschel on March 15, 1784.[3] NGC 4647 is listed along with Messier 60 as being part of a pair of galaxies called Arp 116;[4][5] their designation in Halton Arp's Atlas of Peculiar Galaxies. The galaxy is located on the outskirts of the Virgo Cluster.[6]
- ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 4647. Retrieved 2017-09-02.
- ^ "APOD: 2016 January 28 - Elliptical M60, Spiral NGC 4647". apod.nasa.gov. Retrieved 2017-09-03.
- ^ a b "New General Catalog Objects: NGC 4600 - 4649". cseligman.com. Retrieved 2017-09-03.
- ^ "NASA - Odd Galaxy Couple on Space Voyage". www.nasa.gov. Retrieved 2017-09-03.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-09-03.
- ^ Cullen, Harriet; Alexander, Paul; Green, D.; Sheth, K. (November 2004). "Neutral ISM in the Interacting Spiral NGC 4647". ASP Conference Series. 320: 156–157. Bibcode:2004ASPC..320..156C.