- 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 star whose system has at least one Class M planet -- a volcanic, mountainous world with a firewall canyon where Kang, Koloth and Kor defeated T'nag.