(covers information from several alternate timelines)
Gamma quadrant binary star system Edit
This binary system was close to the Gamma Quadrant exit of the Bajoran wormhole in a sector Starfleet was only beginning to explore when they were forced to urgently chart the system after a runabout crash in 2369. The system contained at least seven planets, two dozen or so moons, and an asteroid belt. The sixth planet had three moons. The third planet contained one moon, which was made into a penal colony. For more information on that moon, see Penal moon.
The star emitted an abnormally large amount of delta radiation, making scanning the system difficult. Scans indicated no M class planets, making survival seem impossible, though these scans could not be trusted, and a life-sustaining moon was later found. (DS9: "Battle Lines")