Dybrin 12 was a moon situated in the Deep Core region of the galaxy. In spite of its blisteringly hot climate and poisonous, highly pressurized atmosphere, it was home to living organisms, including the sentient Dybrinthe species. Using mobile refinery-cities, the Dybrinthe clans exploited the natural fuel that bubbled up from the moon’s extensive subterranean oceans. Since most offworlders could not survive on Dybrin 12, visitors were usually confined to space stations orbiting the moon. The Dybrinthe bounty hunter Athgar Heece was a native of Dybrin 12.

The moon shared its name with Dybrin, a planet also situated in the Deep Core. Dybrin 12 was mentioned in an artist’s journal, which was restored, expanded, and displayed at the Graf Archive at some point after 34 ABY.