Right ascension 16 32 31.9700 Redshift 0.02471 Apparent size (V) 1.82´X1.55´ | Declination +82° 32′ 16.400″ Type E Magnitude 14.3 Apparent magnitude (V) 14.3 | |
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Similar NGC 315, NGC 4261, NGC 6217, NGC 6256, NGC 6242 | ||
NGC 6251 is an active supergiant elliptical radio galaxy in the constellation Ursa Minor, and is more than 340 million light-years away from Earth. The galaxy has a Seyfert 2 active galactic nucleus, and is one of the most extreme examples of a Seyfert galaxy. This galaxy may be associated with gamma-ray source 3EG J1621+8203, which has high-energy gamma-ray emission. It is also noted for its one-sided radio jet—one of the brightest known—discovered in 1977.
References
NGC 6251 Wikipedia(Text) CC BY-SA