Sanghelios

Sangheilios is the Elite homeworld. It is the fourth planet its Triple Star System, with the stars Urs, Fied, and Joori. It has two moons, Qikost and Suban. It is apparently home to ancient Forerunner artefacts, the object of worship for the Sangheili.

Background
It is known that it is a mostly dry and arid planet with a gravity of 1.375 G's. It's atmosphere consists of oxygen, carbon dioxide and nitrogen. The surface temperature is at average -5C to 96C. The planet is home to approximately 8.132 billion Sangheili.

There is a war college in the Iruiru region of Yermo, Sanghelios. It is home to a large civilian population of Sangheili, and possibly some form of defense force (most likely a large fleet). Sanghelios is also likely to be the location of an ongoing battle due to the Covenant Civil War. Because of the Elites' secession from the Covenant, it is probable that Sanghelios has become the capital of the Covenant Separatists.

The planet itself is illustrated in the Beastarium and is shown very similar to Earth, but with a somewhat more scattered landmass in contrast with bodies of water. It's atmosphere also has a reddish hue to it, perhaps indicating a high iron content, like Mars.

At the end of the Human-Covenant War, the Arbiter, Rtas 'Vadum, and the carrier Shadow of Intent depart for Sanghelios.

Locations

 * Yermo
 * Iruiru

Notable Residents

 * Usze ‘Taham
 * Toha ‘Sumai
 * Rtas 'Vadum

Etymology of Name
"Sanguine" means blood and "Helios" means sun or star. Thus, Sanghelios could be translated as "blood-sun". knowing that, it is implied that they are hot blooded in the sense that they are ferocious warriors.