Cron Supernova

The Cron Supernova was the destruction of the Cron Cluster in 3,996 BBY, during the Great Sith War's Battle of Kemplex IX. Aleema Keto unwittingly caused it using Sith alchemy that had been boosted by Ulic Qel-Droma, who wished to kill her. The blast devastated Ossus and created the Cron Drift.

Appearances

 * Tales of the Jedi: The Sith War
 * Darth Bane: Path of Destruction