NGC 7727

"NGC 7727 is a peculiar galaxy in the constellation Aquarius. It harbors two galactic nuclei, each containing a supermassive black hole, separated 1,600 light years apart. It was discovered by the astronomer William Herschel on 27 November 1785.

In all likelihood, this system is the product of the merger of two previous spiral galaxies that took place 1 billion years ago, with the stellar plumes and streams being the remnants of the disks of the two galaxies that collided to form this object.

Two starlike objects can be seen in NGC 7727's center, at least one of them likely being the former core of one of those two spiral galaxies.

NGC 7727's most likely fate is to become an elliptical galaxy in the future, with very little interstellar dust and star formation."(Wikipedia)