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NGC 2835

Spiral galaxy in the constellation Hydra

NGC 2835
NGC 2835 by Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Hydra
Right ascension	09h17m 52.9s[1]
Declination	−22° 21′ 17″[1]
Redshift	0.002955 ± 0.000007 [1]
Heliocentric radial velocity	886 ± 2 km/s[1]
Distance	33.8 ± 8.5 Mly (10.4 ± 2.6 Mpc)[1]
Apparent magnitude (V)	10.3[2]
Characteristics
Type	SAB(rs)c [1]
Apparent size (V)	6.6′ × 4.4′[1]
Notable features	Extended HIPASS source[1]
Other designations
UGCA 157, ESO 564-G035, AM 0915-220, MCG -04-22-008, PGC 26259[1]

NGC 2835 is an intermediate spiral galaxy located in the constellation Hydra. It is located at a distance of circa 35 million light years from Earth, which, given its apparent dimensions, means that NGC 2835 is about 65,000 light years across. It was discovered by Wilhelm Tempel on April 13, 1884.^[3] NGC 2835 is located only 18.5 degrees from the galactic plane.^[4]

NGC 2835 is seen nearly face-on. The galaxy features four or five spiral arms, visible in near infrared due to their population II stars.^[5] The spiral arms have also numerous HII regions and stellar associations, the larger of which are 5 arcseconds across.^[4] Although the galaxy is quite symmetric, the northern arms have HII regions that appear brighter than the southern ones. Also the southern arms appear less developed in their outer parts than the north ones.^[6] The star formation rate in NGC 2835 is 1.3 M_☉ per year and the total stellar mass of the galaxy is 10¹⁰ M_☉.^[7] In the centre of NGC 2835 lies a supermassive black hole whose mass is estimated to be 3-10 million (10^6.72±0.3) M_☉, based on the spiral arm pitch angle.^[8]

NGC 2835 is the foremost galaxy in a small group of galaxies, the NGC 2835 group. Other galaxies identified as members of the cluster are ESO 497-035, and ESO 565-001.^[9] A bit farther away, at projected separation of 2.2 degrees, lies NGC 2784 and its small galaxy group.^[4][9]

• NGC 5068 - another low mass spiral galaxy

• Media related to NGC 2835 at Wikimedia Commons
• NGC 2835 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images