26 Draconis system
From Halopedia, the Halo wiki
The 26 Draconis System is a planetary system that is controlled by the United Nations Space Command. The UNSC colony world of Levosia is located in the system.
This system was one of the first to harbor Insurrectionists. On march 2, 2494, Insurrectionists hijacked the UNSC Callisto and killed the crew. This event is believed to be the start of the undeclared civil war between the Insurrectionists and the UNSC.[1]
