- 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 (pronounced al-SIGH-oh-nee) of the race thought to have killed off the last Tarellians. Also known as Eta Tauri in the Bayer nomenclature system. It is a B-class giant about 541 light-years from Sol.