- 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
The Terran-named home star system to the proto-Vulcan race is a binary, also known by its name in Bayer nomenclature, Delta Orionis. An O-class giant dominates the pair, located from 1,500 to 2,350 light-years from Sol.