Astronomy:NGC 731
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Short description: Galaxy in the constellation Cetus
Coordinates: 
01h 54m 56.208s, −09° 00′ 38.90″
| {{{name}}} | |
|---|---|
 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] |
| 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 | |
| MCG-02-05-073, PGC 7118[2] | |
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 solar luminosity.[3]
References
- ↑ 1.0 1.1 1.2 "Results for object NGC 0731 (NGC 731)". NASA/IPAC Extragalactic Database. California Institute of Technology. https://ned.ipac.caltech.edu/byname?objname=NGC%20731&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1. Retrieved 2021-08-26.
- ↑ 2.0 2.1 2.2 "NGC 731". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+731.
- ↑ 3.0 3.1 3.2 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 406 (2): 1220. doi:10.1111/j.1365-2966.2010.16753.x. Bibcode: 2010MNRAS.406.1220W.
- ↑ 4.0 4.1 4.2 "Search specification: NGC 731". HyperLeda. Université Claude Bernard Lyon 1. http://leda.univ-lyon1.fr/ledacat.cgi?o=NGC%20731. Retrieved 2021-08-26.
- ↑ Seligman, Courtney. "New General Catalogue objects: NGC 700 - 749". http://cseligman.com/text/atlas/ngc7.htm#731. Retrieved 2021-08-26.
External links
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