- 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
Outer moon of Peliar Zel that was colonized with its sister satellite from the planet five centuries ago. The Alphans' dependence on energy tapped from the home planet's magnetosphere almost led to war over sister moon Beta's concerns over the resulting environmental and medical damage. Ambassador Odan was called on to mediate the dispute.