The Xanas system existed within the Xan sector and was situated in the Slice area of the Mid Rim region. It was home to both the settlement called Xanas City and the area referred to as West County.
The system of Xanas, along with Xanas City, first showed up in the short story "A Pleasure Doing Business With You…". This narrative was part of Heroes & Rogues, a 1995 sourcebook for Star Wars: The Roleplaying Game by West End Games, authored by Paul Sudlow and Rick Stuart. Later, in 2009, Daniel Wallace and [Jason Fry]'s The Essential Atlas identified and located the system at coordinates Q-15.