History:
Alpha Onias III. An uninhabited Class-M planet. listed by Federation survey tearms as barren and inhospitable. Subspace fluctuations detected in the system in 2367 suggested a possible Romulan base. While on Alpha Onias III to investigate this possibility, Commander Riker experienced an elaborate holodeck-type virtual reality devised by Barash.
TNG "Future Imperfect"; Star Trek Encyclopedia III
.
