NGC 4653
Galaxy in the constellation Virgo
From Wikipedia, the free encyclopedia
NGC 4653 is an intermediate spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 2,960±24 km/s, which corresponds to a Hubble distance of 142.4 ± 10.0 Mly (43.66 ± 3.08 Mpc).[1] However, two non-redshift measurements give a closer distance of 131.11 ± 3.59 Mly (40.200 ± 1.100 Mpc).[2] It was discovered by German-British astronomer William Herschel on 11 April 1787.[3]
| NGC 4653 | |
|---|---|
NGC 4653 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 43m 50.9247s[1] |
| Declination | −00° 33′ 40.241″[1] |
| Redshift | 0.008742±0.000013[1] |
| Heliocentric radial velocity | 2,621±4 km/s[1] |
| Distance | 131.11 ± 3.59 Mly (40.200 ± 1.100 Mpc)[1] |
| Group or cluster | NGC 4642 Group (LDC 913) |
| Apparent magnitude (V) | 13.4[1] |
| Characteristics | |
| Type | SAB(rs)cd[1] |
| Size | ~117,800 ly (36.13 kpc) (estimated)[1] |
| Apparent size (V) | 1.77′ × 1.38′[1] |
| Other designations | |
| IRAS 12412-0017, UGC 7900, MCG +00-33-006, PGC 42847, CGCG 015-009[1] | |
NGC 4642 Group
NGC 4653 is a member of the NGC 4642 Group (also known as LDC 913). This trio of galaxies includes NGC 4642 and NGC 4690.[4][5] A study published in 2022 claims that NGC 4653 and NGC 4642 form a physical pair, separated by about 50 kpc, and that there is a high probability of a merger in the near future.[6]
Supernovae
Three supernovae have been observed in NGC 4653:
