- 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 large yellow star with four planets.
The third planet follows a highly irregular orbit that is theoretically impossible but shows no degeneration over time, providing a puzzle many have tried to solve.