The Urs system is a ternary star system, housing the primary star Urs, and the orbiting stars Fied and Joori. Urs is also orbited by a system of several planets, of which the Sangheili homeworld Sanghelios is the fourth. Formerly under Covenant control, the system fell under the auspices of the Sangheili after the splintering of the Covenant in the Great Schism.
 List of appearances
- ^ Halo 3, Bestiarum