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Galaxy in the constellation Cetus From Wikipedia, the free encyclopedia
NGC 731 is an elliptical galaxy located in the constellation of Cetus about 172 million light-years away from the Milky Way.[3] It was discovered by William Herschel on January 10, 1785.[5] It has a luminosity of 3.9×1010 L☉.[3]
| NGC 731 | |
|---|---|
legacy surveys image of NGC 731 | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 01h 54m 56.208s[1] |
| Declination | −09° 00′ 38.90″[1] |
| Redshift | 0.01301[2] |
| Heliocentric radial velocity | 3875 km/s[2] |
| Distance | 172 Mly (52.7 Mpc)[3] |
| Apparent magnitude (V) | 12.14[4] |
| Apparent magnitude (B) | 13.06[4] |
| Characteristics | |
| Type | E,[4] cD:[1] |
| Other designations | |
| MCG -02-05-073, PGC 7118[2] | |
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