NGC 4214 | |
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![]() NGC 4214 in Optical and near-infrared, imaged by Hubble's Wide Field Camera 3 | |
Observation data (J2000 epoch) | |
Constellation | Canes Venatici |
Right ascension | 12h 15m 39.17s [1] |
Declination | +36° 19′ 36.8″ [1] |
Redshift | 0.000971 [1] |
Heliocentric radial velocity | 291±1 km/s [1] |
Distance | 9.72 ± 0.82 Mly (2.979 ± 0.252 Mpc) [1] |
Apparent magnitude (V) | 10.2 [1] |
Characteristics | |
Type | IAB(s)m [1] |
Size | ~31,100 ly (9.53 kpc) (estimated) [1] |
Apparent size (V) | 8.4′ × 6.6′ [1] |
Other designations | |
KUG 1213+366, IRAS 12131+3636, NGC 4228, UGC 7278, MCG 6-27-42, PGC 39225, CGCG 187-32 [1] |
NGC 4214 is a dwarf barred irregular galaxy located around 10 million light-years [2] away in the constellation Canes Venatici. It was discovered on 28 April 1785 by German-British astronomer William Herschel. [3] NGC 4214 is a member of the M94 Group.
NGC 4214 is both larger and brighter than the Small Magellanic Cloud [4] as well as a starburst galaxy, with the largest star-forming regions (NGC 4214-I and NGC 4214-II) in the galaxy's center. Of the two, NGC 4214-I contains a super star cluster rich in Wolf–Rayet stars and NGC 4214-II is younger (age less than 3 million years), including a number of star clusters and stellar associations. [5]
NGC 4214 also has two older super star clusters, both with an age of 200 million years and respective masses of 2.6×105 and 1.5×106 solar masses. [6]
Two satellites are known to exist around the vicinity of NGC 4214. One is DDO 113, which has an absolute V-band magnitude of −12.2. It stopped star formation around 1 billion years ago. Another, more recently discovered object is MADCASH-2, officially named MADCASH J121007+352635-dw. The name refers to the MADCASH (Magellanic Analog Dwarf Companions and Stellar Halos) project. It is similar to typical ultra-faint dwarf galaxies, with an absolute V-band magnitude of −9.15, except in that it shows evidence of multiple episodes of star formation in its recent past: one around 400 million years ago, and another 1.5 billion years ago. [7]
One supernova has been observed in NGC 4214: SN 1954A (type Ib, mag. 9.8) was discovered by Paul Wild on 30 May 1954. [8] [Note: some sources incorrectly list the discovery date as 10 April 1954.] [9] In addition, the galaxy has hosted one luminous blue variable: SN 2010U (type LBV, mag. 16) was discovered by Kōichi Itagaki on 5 February 2010. [10] [11]