- 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
An independent Alpha Quadrant planet, mint green in appearance with thick cloud cover, that is home to a poor but proud race whose hopes for progress based on a nearby wormhole were dashed in 2366 when it was discovered to be unstable. The planet is not Class-M; its atmosphere is not hospitable to most other races and its humanoid natives must use breathers when off-planet, somewhat like the Benzites.