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NGC 4151

 Home Physics Subfields of physics Astrophysics Space plasmas X-ray astronomy
 0 By others on same topic  0 Discussions  1970-01-01  See my version
NGC 4151 is a Seyfert galaxy located in the constellation Ursa Major. It is classified as a type 1 Seyfert galaxy, which is characterized by having broad emission lines in its spectrum, indicating the presence of a supermassive black hole at its center surrounded by an accretion disk.

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