The Urun system, a star system in the Mid Rim, held within it the planet known as Urun Five.
Initially, The Essential Atlas Online Companion placed the Urun system in the Mid Rim at coordinates O-11. However, this placement proved to be an error because the maps within The Essential Atlas definitively showed that location O-11 was occupied by a section of the Inner Rim alongside a part of the Expansion Region. This error was subsequently rectified with the March 15 update of the Online Companion.