NGC 6251
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Template:Short description Template:Infobox Galaxy
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,[1] 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.[1] It is also noted for its one-sided radio jet—one of the brightest known—discovered in 1977.[2] The supermassive black hole at the core has a mass of Script error: No such module "val"..[3]
References
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External links
- Template:Sister-inline
- www.jb.man.ac.uk/atlas/
- Wikisky image of NGC 6251
- Hubble Finds a Bare Black Hole Pouring Out Light (Probing the heart of the active galaxy NGC 6251—September 10, 1997)
