The Sigma III solar system was a formerly inhabited planetary system that was located somewhere in the Alpha or Beta Quadrant. This system was near to Starbase G-6 and, in the mid-24th century, was home to a Federation mining colony on Quadra Sigma III.
In 2364, the starship USS Enterprise-D received a distress call from the colony following a catastrophic mining accident. The Enterprise-D rescued nine survivors from the ill-fated colony. (TNG: "Hide And Q")
External link[]
- Quadra Sigma at Memory Beta, the wiki for licensed Star Trek works