The Cleon system was a star system near the Phoenix Cluster.
In 2368, the USS Endeavour was on duty in the system and was supposed to be the next step in the Ktarian plan to take over Starfleet after the USS Enterprise-D had been secured. (TNG: "The Game")
This system was only mentioned in dialogue.
External link[]
- Cleon at Memory Beta, the wiki for licensed Star Trek works