The Rashanar Battle Site was an area of space in the Rashanar Sector where Federation Alliance and Dominion forces fought each other at the Battle of Rashanar in late 2375. Following the battle, the battle site was strewn with hundreds of derelict starships, that became held in place by the artificial gravity generators on each ship creating a gravity field at the center of the site. An antimatter asteroid also roamed the battle site, created from waste antimatter from all the starships. (TNG novels: A Time to Be Born and A Time to Die)