| NGC 4475 | |
|---|---|
NGC 4475 imaged bySDSS | |
| Observation data (J2000epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12h 29m 47.5825s[1] |
| Declination | +27° 14′ 36.039″[1] |
| Redshift | 0.024660±0.000005[1] |
| Heliocentric radial velocity | 7,393±1 km/s[1] |
| Distance | 327.60 ± 10.87 Mly (100.442 ± 3.334 Mpc)[1] |
| Apparent magnitude (V) | 14.3g[1] |
| Characteristics | |
| Type | SAbc[1] |
| Size | ~190,600 ly (58.43 kpc) (estimated)[1] |
| Apparent size (V) | 1.65′ × 0.87′[1] |
| Other designations | |
| UGC 7632,MCG +05-30-008,PGC 41225,CGCG 159-008[1] | |
NGC 4475 is aspiral galaxy in theconstellation ofComa Berenices. Its velocity with respect to thecosmic microwave background is7,681±20 km/s, which corresponds to aHubble distance of 369.5 ± 25.9 Mly (113.29 ± 7.94 Mpc).[1] However, 12non-redshift measurements give a closer mean distance of 327.60 ± 10.87 Mly (100.442 ± 3.334 Mpc).[2] It was discovered by German-British astronomerWilliam Herschel on 11 April 1785.[3][4]
Twosupernovae have been observed in NGC 4475: