Chi Ceti system

The Chi Ceti System was a system located in the far reaches of UNSC-controlled space, approximately 80 light years from Earth. It was home to the planet Chi Ceti IV, which housed the Damascus Testing Facility.

History
In 2525, the Battle of Chi Ceti was fought here between the UNSC Commonwealth and a Covenant Raiding ship. In this battle, the Covenant ship was destroyed, though Samuel-034 died in the process.

The facility on Chi Ceti IV was evacuated shortly thereafter, along with the MJOLNIR armor. It is unknown whether this planet was glassed by the Covenant or not.

Trivia

 * Chi Ceti (aka 53 Ceti) is an actual star system approximately 80 light years from Earth.