NGC 4493
Galaxy in the constellation Virgo
From Wikipedia, the free encyclopedia
NGC 4493 is a large elliptical galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 7,266±24 km/s, which corresponds to a Hubble distance of 349.5 ± 24.5 Mly (107.17 ± 7.51 Mpc).[1] Additionally, 30 non-redshift measurements give a similar mean distance of 355.28 ± 8.60 Mly (108.930 ± 2.638 Mpc).[2] It was discovered by German astronomer Albert Marth on 22 March 1865.[3]
Right ascension12h 31m 08.3699s[1]
Declination+00° 36′ 49.325″[1]
| NGC 4493 | |
|---|---|
NGC 4493 imaged by Pan-STARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 31m 08.3699s[1] |
| Declination | +00° 36′ 49.325″[1] |
| Redshift | 0.023083±0.00000934[1] |
| Heliocentric radial velocity | 6,920±3 km/s[1] |
| Distance | 355.28 ± 8.60 Mly (108.930 ± 2.638 Mpc)[2] |
| Apparent magnitude (V) | 14.5g[1] |
| Characteristics | |
| Type | E[1] |
| Size | ~178,600 ly (54.76 kpc) (estimated)[1] |
| Apparent size (V) | 1.16′ × 0.74′[1] |
| Other designations | |
| 2MASX J12310835+0036496, MCG +00-32-017 NED01, PGC 41409, CGCG 014-056 NED01[1] | |
NGC 4493 is neighbored to the southeast by the elliptical galaxy PGC 1170468.
Supernovae
Two supernovae have been observed in NGC 4493.
