Pelios (or the Pelian system) is a star system located in the space of the galaxy's Alpha Quadrant. This system is orbited by at least three planets, including Bactricia, the homeworld of the Bactrician civilization. The Federation's Pelios Station was located in the Pelian system in the 24th century. (DS9 - The Lives of Dax short story: "The Music Between the Notes")