3C 66B is an

elliptical Elliptical may mean: * having the shape of an ellipse, or more broadly, any oval shape ** in botany, having an elliptic leaf shape ** of aircraft wings, having an elliptical planform * characterised by ellipsis (the omission of words), or by conc ...

Fanaroff and Riley class 1 radio galaxy located in the constellation Andromeda. With an estimated redshift of 0.021258, the galaxy is about 300 million light-years away. The orbital motion of 3C 66B showed supposed evidence for a

supermassive black hole A supermassive black hole (SMBH or sometimes SBH) is the largest type of black hole, with its mass being on the order of hundreds of thousands, or millions to billions of times the mass of the Sun (). Black holes are a class of astronomical ob ...

binary (SMBHB) with a period of 1.05 ± 0.03 years, but this claim was later proven wrong (at 95% certainty).

Messier 87 Messier 87 (also known as Virgo A or NGC 4486, generally abbreviated to M87) is a supergiant elliptical galaxy with several trillion stars in the constellation Virgo. One of the largest and most massive galaxies in the local ...

(M87), about 55 million light-years away, is the largest giant elliptical galaxy near the Earth, and also contains an

active galactic nucleus An active galactic nucleus (AGN) is a compact region at the center of a galaxy that has a much-higher-than-normal luminosity over at least some portion of the electromagnetic spectrum with characteristics indicating that the luminosity is not prod ...

. The smooth jet of 3C 66B rivals that of M87. 3C 66B is an outlying member of Abell 347 which is part of the

Perseus–Pisces Supercluster The Perseus–Pisces Supercluster (SCl 40) is one of the largest known structures in the universe. Even at a distance of 250 million light-years, this chain of galaxy clusters extends more than 40° across the northern winter sky. The Perseus- ...

References

External links

www.jb.man.ac.uk/atlas/
(J. P. Leahy)

(Alan Bridle / 31 May 2006) * Wikisk
image
of PGC 9067 {{DEFAULTSORT:3C 66B Radio galaxies Seyfert galaxies 066B Andromeda (constellation) 009067 01841 J02231141+4259313 Elliptical galaxies Perseus-Pisces Supercluster