NGC 939

NGC 939
NGC 939
	DECam image of NGC 939
Observation data (J2000 epoch)
Constellation	Eridanus
Right ascension	02h 26m 21.312s
Declination	−44° 26′ 46.08″
Redshift	0.017186
Heliocentric radial velocity	5108 km/s
Distance	241.4 ± 17.0 Mly (74.01 ± 5.22 Mpc)
Apparent magnitude (B)	14.06
Characteristics
Type	S0/a/E
Other designations
	MCG -07-06-004, PGC 9271

NGC 939 is a lenticular or elliptical galaxy in the constellation Eridanus. It is estimated to be 241 million light-years from the Milky Way^[3] and has a diameter of approximately 80,000 ly. NGC 939 was discovered on October 18, 1835 by astronomer John Herschel.^[5]^[6]

NGC 939 is better seen from the southern hemisphere because of its location south of the celestial equator.^[7]

References

^ ^a ^b Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
^ ^a ^b ^c ^d ^e "NGC 939". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-30.
^ ^a ^b "Results for object NGC 0939 (NGC 939)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-05-30.
^ "Search specification: NGC 939". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2020-05-30.
^ "Revised NGC Data for NGC 939". spider.seds.org. Retrieved 2020-03-26.
^ Ford, Dominic. "The galaxy NGC 939 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-26.
^ "NGC 939 - Elliptical Galaxy | TheSkyLive.com". theskylive.com. Retrieved 2020-12-04.

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