Oba Diah

Oba Diah was a planet upon which the Pyke Syndicate operated. From their Oba Diah stronghold, the Pykes managed the distribution of spice from Kessel as it was delivered throughout the galaxy.

History
Around the time of the Invasion of Naboo, Supreme Chancellor Finis Valorum sent Jedi Master Sifo-Dyas and the Chancellor's personal aide, Silman, to Oba Diah in order to settle a dispute within the Pyke Syndicate, one that threatened to create a full-scale gang war on Coruscant. Shortly after arriving, Sifo-Dyas and Silman were diverted to Felucia by the Jedi High Council. The Pykes were hired by the Sith to shoot down their vessel, which crashed on the Oba Diah moon. This act led to Sifo-Dyas' death, and Silman's capture by the Pykes for insurance against the Sith.[1]

Years later, during the Clone Wars, Sifo-Dyas' T-6 shuttle was discovered on the moon by Jedi Master Plo Koon. This led the Jedi Order to investigate Sifo-Dyas' disappearance. With the help of now-former Chancellor Valorum, the Jedi established a link between the Pykes and Sifo-Dyas. Jedi Master Obi-Wan Kenobi and Jedi Knight Anakin Skywalker traveled to Oba Diah to investigate, where the Pyke leader, Lom Pyke, informed them that a man called Tyranus—secretly the Sith Lord Count Dooku—had hired them to kill the long-dead Jedi Master. Lom also revealed that Silman was alive, though Dooku soon arrived and killed Silman. The Sith Lord engaged the Jedi in a lightsaber duel on Oba Diah, where they learned that Dooku was Tyranus. The Pykes joined the battle, forcing Dooku to retreat, but not before he was able to kill Lom.