M86 is a galaxy in the Virgo Cluster.
It is tens of millions of light years away from Earth. It was discovered by the Andromeda Ascendant to be the source of the Magog invasion of the Systems Commonwealth before The Fall of the Systems Commonwealth, and home to the Magog World Ship.
The galaxy was barren and lifeless, with nothing left but dust floating in a sea of black holes. The life there was destroyed by the Spirit of the Abyss and the Magog. ("The Widening Gyre")