The Bes system was star system in the Airam sector, in the Outer Rim Territories at galactic coordinates M-20. Shortly before the Battle of Nocto in the Galactic Civil War, a resupply operation of the Imperial-class Star Destroyer Rage in this system came under attack from Rebel Alliance forces during the and shortly afterward a combined Rebel/Airam force tried to destroy the Rage without success in the .
The Bes system appears in the video game Star Wars: X-Wing vs. TIE Fighter: Balance of Power Campaigns.
- The Essential Atlas