The Serianan Belt The Serianan Belt represented an asteroid belt that existed in the Serianan system. In the era of the New Republic, Korren Starchaser, a scout, headed up a group from the New Republic Scout Service to the Serianan system. There, inside a sizable cavern situated within one of the belt's asteroids, the team came across alien relics. The team subsequently gave the name the Gulch to the cavern.