Ngc 6251
The galaxy has an active Seyfert 2-type galactic nucleus and is one of the most extreme examples of a. The galaxy has an active Seyfert 2-type galactic nucleus and is one of the most extreme examples of one. ngc 6251 is an active supergiant elliptical radio galaxy in the constellation Ursa Minor and is more than 340 million light years from Earth. NGC 6251 is an active supergiant elliptical radio galaxy in the constellation Ursa Minor and is more than 340 million light years from Earth.
The newly discovered radio galaxy NGC 6251 is the largest galaxy in the northern sky, with an angular size of 1.2 degrees. Wikipedia A newly discovered radio galaxy, NGC 6251, has an angular size of 1○. The radio spectral index of the jet is 0.54, and the nucleus has a flat spectrum with a cut-off at low frequencies.