. The giant spiral galaxy in the constellation of Andromeda (M31), with its two smaller companions: NGC 205 (left) and M32 (right). The galaxy M32 is suspected to harbor a three million solar mass black hole in its nucleus . See this animation for an illustration of the effect that the black hole has on the motions of the surrounding stars. Show more information about this topic. Return to my home page. Last modified December 8, 1998. Roeland van der Marel, marel@stsci.edu . Copyright Notice .