Eremar was a pulsar star system located in the Taurus Reach, estimated to be two hundred million years old. In the mid-23rd century, Federation stellar cartography databases listed it as FGC PSR 0108+143, but it was named Eremar by the Vulcans who had charted the area with automated survey probes centuries prior to 2268.
Eremar was situated in the centre of what was the Tkon Empire, 35 light-years from starbase 47-Vanguard. It was believed to have been the Tkon's core system which, when the star was detonated by the Shedai to prevent the Tkon employing a weapon against them, crippled the entire empire. (VAN novel: What Judgments Come)