Rhen Var was a planet situated near the Tion Cluster in the Outer Rim Territories and one of the former Thanium Worlds. It was the first planet in the Tobali system. Throughout the history of the Galactic Republic, Rhen Var was covered in ice, rendering it almost uninhabitable. Remains of an ancient civilization and old Jedi artifacts were found beneath the ice on the planet, remnants of a former population.