The Sepan sector was a sector located in the Slice portion of the Expansion Region. It contained the planets Kayuk, Raskane IV and Wann Tsir, as well as the location known as Tingel Deepspace Besh. The sector also contained the Sepan system, which was the site of the planets Dimok, Gaerboud IV, Gerbaud 2, Kuthard, Ripoblus and Sepan 8.
The Sepan sector was home to the eponymous Sepan species, sentient humanoids divided between the peoples of Dimok and Ripoblus, the two primary worlds of the Sepan system.
The Sepan sector was the site of the Sepan Civil War, a conflict between the Dimoks and the Ripoblus which lasted intermittently for centuries.
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