NGC 839

NGC 839
HST image of NGC 839
Observation data (J2000 epoch)
Constellation	Cetus
Right ascension	02h 09m 42.929s[1]
Declination	−10° 11′ 02.71″[1]
Redshift	0.012916[2]
Heliocentric radial velocity	3847 km/s[2]
Distance	174.3 ± 12.2 Mly (53.44 ± 3.75 Mpc)[1]
Apparent magnitude (V)	11.42[2]
Apparent magnitude (B)	13.98[2]
Characteristics
Type	S0: pec[1]
Other designations
MCG -02-06-034, PGC 8254[2]

NGC 839 is a lenticular galaxy located in the constellation Cetus. It was discovered November 28, 1785 in a sky survey by Wilhelm Herschel.^[3] It is one of the galaxies that are part of the quadruplet family HGC 16, along with the unbarred lenticular galaxy NGC 838.^[2]

NGC 839 is a luminous infrared galaxy (LIRG) that shows signs of high amounts of star formation; therefore, it is also classified as a starburst galaxy.^[4] It is similar in appearance to Messier 82, suggesting a similar formation history.^[4]

1. ^ ^{a b c d} "Results for object NGC 0839 (NGC 839)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-09-08.
2. ^ ^{a b c d e f} "NGC 839". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-09-08.
3. ^ Seligman, Courtney. "New General Catalogue objects: NGC 800 - 849". cseligman.com. Retrieved 2021-09-08.
4. ^ ^{a b} Rich, J. A.; Dopita, M. A.; Kewley, L. J.; Rupke, D. S. N. (2010). "NGC 839: Shocks in an M82-like Superwind". The Astrophysical Journal. 721 (1): 505–517. arXiv:1007.3495. Bibcode:2010ApJ...721..505R. doi:10.1088/0004-637X/721/1/505. S2CID 118875933.

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