Unidentified abandoned moon

A moon was the site of a mountain into the black jade side of which members of the Sith tradition of Force-users at one point carved a sacred temple. Eventually, however, the moon was abandoned, with the temple reduced to a crumbling ruin.

At some point between approximately 5000 BBY and many years prior to 1032 BBY, the Sith Lord Darth Caldoth caused the death of his Sith master, with the latter's body coming to lie in the crypts of the temple on the abandoned moon. Much later, Caldoth also abandoned his own apprentice, Ry Nymbis, inside the same temple on the moon—by then a long-forsaken, secret place—for seven days and seven nights as part of a trial for him.

Text and facts from the “Unidentified abandoned moon” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.