NGC 3902

NGC 3902
SDSS image of NGC 3902
Observation data (J2000 epoch)
Constellation	Leo
Right ascension	11h 49m 18.746s [1]
Declination	+26° 07′ 17.50″ [1]
Redshift	0.01199 [2]
Heliocentric radial velocity	3573 km/s [2]
Distance	188.6  Mly (57.81  Mpc) [3]
Apparent magnitude  (B)	13.99 [4]
Characteristics
Type	SAB(s)bc: [5]
Other designations
UGC 6790, MCG +04-28-055, PGC 36923 [2]

NGC 3902 is an intermediate spiral galaxy in the constellation Leo. It was discovered on April 6, 1785, by William Herschel and observed on February 19, 1827, by John Herschel. ^[6] It is estimated to be 180 to 185 million light-years away, and its redshift-independent distance estimates to about 185 to 240 million light-years. It is around 75,000 light-years in diameter. ^{[7] [6]}

NGC 3902 is one galaxy within the NGC 3902 group (or LGG 254), a group of galaxies in Leo; the other galaxies of which are NGC 3920, NGC 3944, UGC 6806 and UGC 6807.

References

1. 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.
2. "NGC 3902". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2021-02-09.
3. Tully, R. Brent; Courtois, Hélène M.; Sorce, Jenny G. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv: 1605.01765 . Bibcode:2016AJ....152...50T. doi: 10.3847/0004-6256/152/2/50 . S2CID   250737862. 50.
4. "Search specification: NGC 3902". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2021-02-09.
5. "Results for object NGC 3902 (NGC 3902)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-02-09.
6. Courtney, Seligman. "New General Catalog Objects: NGC 3900 - 3949". cseligman.com. Retrieved 23 October 2020.
7. Ford, Dominic. "The galaxy NGC 3902". In-The-Sky.org. Dominic Ford. Retrieved 23 October 2020.