Cosmic Turbine
From Wookieepedia, the Star Wars wiki.
The Cosmic Turbine was part of an ancient alien artifact.
[edit] History
The structure was so large, it was mistaken for a planet until 4,250 BBY. Following the Third Great Schism, the Dark Jedi were driven off Coruscant. Retreating to the system, they discovered the artifact and attempted to harness its power, inadvertently destroying themselves and the entire solar system.
