NGC 731
NGC 731, also known as NGC 757, 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 | |
|---|---|
 SDSS 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] |
| Helio 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 | |
| NGC 757, MCG -02-05-073, PGC 7118[2] | |
References
- "Results for object NGC 0731 (NGC 731)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-08-26.
- "NGC 731". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-08-26.
- Wolf, Joe; Martinez, Gregory D.; Bullock, James S.; Kaplinghat, Manoj; Geha, Marla; Muñoz, Ricardo R.; Simon, Joshua D.; Avedo, Frank F. (2010). "Accurate masses for dispersion-supported galaxies". Monthly Notices of the Royal Astronomical Society: no. arXiv:0908.2995. doi:10.1111/j.1365-2966.2010.16753.x. S2CID 14616368.
- "Search specification: NGC 731". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2021-08-26.
- Seligman, Courtney. "New General Catalogue objects: NGC 700 - 749". cseligman.com. Retrieved 2021-08-26.
External links
Media related to NGC 731 at Wikimedia Commons
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