The Outer Rim's Avindia system contained a double star called Avindia which was orbited by the planet Polus. Due to the orbit of Polus, there were only brief seasons during which the planet was warmed by both of the system's stars.
- Star Wars: Empire at War: Prima Official Game Guide
- Star Wars: Empire at War: Forces of Corruption: Prima Official Game Guide
- The Essential Atlas (As "Polus system")
- (As "Polus system")