This article is currently under construction. As the subject is under active development, information here may not yet be final.

The Y'Deio system is the home system of the Kig-Yar. The system's star, Y'Deio, is an orange dwarf star. Y'Deio is located within the Hirshum Veil, a molecular cloud of medium density, which has historically hindered Kig-Yar observational astronomy beyond their immediate stellar neighborhood. The system forms the core of the Hirshum Mercatorial Enclave, a semi-autonomous special economic zone of the Covenant Empire encompassing around three dozen systems along trade routes passing into and through the Hirshum Veil and terminating at the nearest bastion world, Jubilant Accord.

Planetary system

Y'Deio lacks habitable terrestrial planets; most activity is focused on the gas and ice giants' moons, trojans, and the asteroid belt, along with various minor planetoids. The Y'Deio system is home to tens if not hundreds of thousands of habitats, either burrowed into asteroids or constructed in space. The highly distributed nature of their civilization was one reason enclaves of the Kig-Yar managed to hold off against the Covenant for some time during their conversion.

Chu'ot

The system's only ice giant, Chu'ot has an extensive system of moons, of which Eayn is the largest and most hospitable. Yet more Kig-Yar habitats are located on the planet's rings and trojan asteroids. The ice giant has been mined for fusion fuels since the early spacefaring history of the Kig-Yar.

Eayn

Kaelarot

Hisnimak

The system's other major gas giant is inhabited by the subculture known as Cloud-jockeys, who dwell on thousands of floating platforms suspended high in the atmosphere. Rotovator-type skyhooks are used for transportation to and from low orbit.

Asteroid Belt

T'vao

Dal'koth