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Galaxy in the constellation Microscopium From Wikipedia, the free encyclopedia
NGC 7012 is a large, bright[2] elliptical galaxy located about 380 million light-years away from Earth in the constellation Microscopium.[3][4] NGC 7012 was discovered by astronomer John Herschel on July 1, 1834.[5] NGC 7012 is also is host to a supermassive black hole with an estimated mass of 4.5 × 109 M☉.[6] NGC 7012 is very large galaxy, with an estimated diameter of nearly 300,000 light years.[4]
NGC 7012 | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Microscopium |
Right ascension | 21h 06m 45.5s[1] |
Declination | −44° 48′ 53″[1] |
Redshift | 0.029347[1] |
Heliocentric radial velocity | 8,798 km/s[1] |
Distance | 380 Mly (117 Mpc)[1] |
Apparent magnitude (V) | 13.65[1] |
Absolute magnitude (B) | -23.53 ± 0.51[1] |
Characteristics | |
Type | E4 pec[1] |
Size | ~294,200 ly (90.19 kpc) (estimated)[1] |
Apparent size (V) | 2.5 x 1.4[1] |
Other designations | |
ESO 286-51, AM 2103-450, PGC 66116[1] |
NGC 7012 is the brightest member in the center of a small compact group of interacting galaxies[7] known as Abell S0921.[8] Due to it also being the dominant member of the group, NGC 7012 is classified as a Cd galaxy.[9] The group has about seven major galaxies with many other more distant, fainter galaxies that are probably also associated.[2]
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