History of Ceres

Ceres is a dwarf planet and the largest object in the asteroid belt, about 945 km across. Per Destinypedia, a Golden Age space station was built in its orbit, and the Fallen House of Wolves later occupied and excavated it for shipyards and habitats. Mara Sov, the Awoken Queen, used Harbingers to destroy it and decimate the Wolves in the Scatter, which began the Reef Wars.

In play

Ceres is lore only and not a playable destination; it is referenced in Destiny 2: Forsaken and later seasons. Cocytus is listed as a location within Ceres on Destinypedia; the wiki's separate triumph page for Cocytus links the name but no source ties them.