Ixion

Ixion is a Human colony, where Darren Leone had a niece he barely knew.

Trivia
It is possible this planet is 28978 Ixion, a minor planet in the Kuiper belt in the Sol system that was first discovered in 2001, and was christened "Ixion" in 2002, after the Greek figure Ixion, a king who was punished by Zeus and bound eternally on a wheel of fire in the underworld.

List of appearances

 * Halo: Fractures
 * Breaking Strain