NGC 4157
| NGC 4157 | |
|---|---|
NGC 4157 and superimposed bright star SAO 28277 | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 12h 11m 04.4s |
| Declination | +50° 29′ 05″ |
| Redshift | 0.002572 ± 0.000005 |
| Heliocentric radial velocity | 771 ± 1 km/s |
| Distance | 55.8 ± 10 Mly (17.1 ± 3.1 Mpc) |
| Apparent magnitude (V) | 11.3 |
| Characteristics | |
| Type | SAB(s)b? |
| Apparent size (V) | 7.95′ × 1.06′ |
| Notable features | Edge-on galaxy |
| Other designations | |
| UGC 7183, MCG +09-20-106, CGCG 269-038, IRAS 12085+5045, PGC 38795, 6C B120833.1+504537 | |
NGC 4157 is a spiral galaxy in the constellation Ursa Major. The galaxy lies about 55 million light years away from Earth, which means, given its apparent dimensions, that NGC 4157 is approximately 125,000 light years across. It was discovered by William Herschel on March 9, 1788.