Codia's second moon

Codia's second moon was a tidally locked moon of the Mid Rim Territories planet Codia I. Its darker side was covered by a vast ocean and its brighter side was rockier with massive diamond deposits. Between 44 BBY and 32 BBY, burglars destroyed the power core of a mining outpost on the brighter side of the moon, causing unusual radioactivity that suppressed the entire light spectrum at the outpost. The Jedi Obi-Wan Kenobi and Qui-Gon Jinn were sent to investigate and discovered that the radiation had driven the Defel miner Rosack Denahst into a frenzy. Ultimately, they managed to repair the power core and restore the light and Denahst's sanity.

Text and facts from the “Codia's second moon” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.