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About: NGC 6251     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatRadioGalaxies, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingplacedbo:Locationschema:Placecelestial bodyGalaxyyago:WikicatSeyfertGalaxiesgalaxyyago:Abstraction100002137yago:Collection107951464yago:Galaxy108270938yago:Group100031264yago:WikicatGalaxiesyago:WikicatEllipticalGalaxiesyago:WikicatRadioGalaxies New Facet based on Instances of this Class

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. The supermassive black hole at the core has a mass of (5.9±2.0)×108 M☉.