History of Lunar Memoriam

Lunar Memoriam is a Legendary emblem from Season 8. The Collections screen lists its source as "Among the lost Ghosts of the Moon."

Acquisition

The emblem is tied to the lost Ghost bounties from Eris Morn on the Moon. Those bounties appear after the Shadowkeep campaign is finished, and players need to find Ghost Traces through Moon activities to start them. Reported sources for Ghost Traces include chests, public events, high-value targets and patrols.

In 2019, players reported that completing all nine available bounties did not unlock the emblem. The author of one report considered a bug unlikely, and thought more lost Ghost bounties were probably still to come.