Markarian 231
Seyfert galaxy in the constellation Ursa Major / From Wikipedia, the free encyclopedia
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Markarian 231 (UGC 8058) is a Type-1 Seyfert galaxy that was discovered in 1969 as part of a search of galaxies with strong ultraviolet radiation. It contains the nearest known quasar. Markarian 231 is located about 581 million light years away from Earth, in the constellation of Ursa Major.
Quick Facts Observation data (J2000 epoch), Constellation ...
Markarian 231 | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Ursa Major |
Right ascension | 12h 56m 14.23410s[1] |
Declination | +56° 52′ 25.2386″[1] |
Redshift | 0.04147[2] |
Heliocentric radial velocity | 12173 km/s[2] |
Distance | 581 Mly, 178 Mpc |
Apparent magnitude (V) | 13.84[3] |
Characteristics | |
Type | Sc/quasar |
Other designations | |
UGC 8058, Mrk 231, Mkn 231, Markarian 231, MCG+10-19-004, ZW VII 490, PGC 44117 |
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