MARKARIAN 177 A DWARF GALAXY

Markarian 177 is a dwarf galaxy located more than 90 million light-years away, in the bowl of the Big Dipper, within the constellation Ursa Major. It’s a galaxy that seems to show possible signs of a recent galactic collision. Near the galaxy, at over 2,600 light-years from it, a strange X-ray source known as SDSS1133. The source may be a supermassive black hole ejected from its home galaxy after merging with Markarian 177. If the object isn't a black hole, then it might have been a rare type of star known as a Luminous Blue Variable (LBV) that has recently undergone a supernova.

Reference:
http://www.nasa.gov/content/goddard/nasas-swift-mission-probes-an-exotic-object/#.VM-12dKUffI

Animation:
Markarian 177 & SDSS1133 comparison with a simulated galaxy collision. When the central black holes in these galaxies combine, a "kick" launches the merged black hole on a wide orbit taking it far from the galaxy's core.
Credit: NASA Goddard's Scientific Visualization Studio