The Senex system was a star system located within the Senex sector of the Mid Rim and Western Reaches regions of the galaxy that contained the planet Senex.
During the Galactic Civil War, it hosted an Imperial training ground. While training, Rebel Alliance pilot recruit Dev accidentally hyperspaced to Senex system. Mistaking the training craft for exercise targets, he wiped them out before his astromech notified him he was in Imperial space. This event was ported into a simulated exercise for Rebel pilots.
- "Twinkle, Twinkle Little Star, How I Wonder Where We Are" — Voyages SF 13
- X-Wing: The Official Strategy Guide
- X-Wing Collector's CD-ROM: The Official Strategy Guide
- Star Wars Encyclopedia
- The Complete Star Wars Encyclopedia, Vol. III
- The Essential Atlas