Y'Deio is an yellow dwarf star located 41 light years from Earth,[1] within Covenant territory. It is the only known Covenant star system discovered centuries ago by humanity, and is referred to in human astronomy as HD 69830.

Y'Deio has a planetary system consisting of three planets and an asteroid field. The Kig-Yar homeworld of Eayn orbits the third planet, Chu'ot, a gas giant. Further out is an asteroid belt, with a number of Kig-Yar colonies built on small planetoids and asteroids.



  1. Halo 3, Bestiarum