- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
A planet of a white dwarf star and a natural source of vertion particles that were used to save the U.S.S. Enterprise's emergent holodeck life-form in 2370.