Planet in the distant Omicron Theta System. Site of a former Earth Colony that was destroyed by the Crystalline Entity. Data was found deactivated on this planet by the crew of the USS Tripoli in 2338.
This planet was later revisited by the USS Enterprise (NCC-1701-D). The laboratory of Dr. Noonien Soong and another android, Lore, were found. (TNG: "Datalore")