Thustra systemCanonLegendsInfinitiesThe Thustra system, a star system situated inside the Expansion Region, encompassed the planets known as Thustra and Isobe.AppearancesTarkin (and audiobook) (First mentioned) (Unkown)Unkown Unknown Never Far Behind — Star Wars Rebels Magazine 39 (First appearance) (In flashback(s)) (Unkown)Unkown Unknown