Tau Ceti system

Tau Ceti (τ Cet / τ Ceti, pronounced /ˌtaʊ ˈsiːtaɪ/) is a star in the constellation "Cetus" that is similar to Sol in mass and spectral type.

At just under 11.9light years' distance from the Solar System, it is a relatively close star. Like Sol, Tau Ceti is a yellow-orange dwarf Star. This system was inhabited by a significant Covenant presence in 2552, including a massive fleet of warships prepared to attack Earth and the refit and repair station Unyeilding Hierophant. The station was destroyed by UNSC forces September 13, 2552, including the majority of the Covenant fleet.

Tau Ceti is notably also the setting for the game Marathon.