- 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
Sol's closest stellar neighbor, a trinary that is only 4.3 lightyears away from Earth. One of its components' habitable planets was alreay colonized by Earth humans in 2154--possibly the planet where warp-drive inventor Zefram Cochrane took up residence later in life.
In the future altered by the premature death of Gabriel Bell, the lack of an Earth-fostered Federation left the Romulans free to expand as far as Alpha Centauri. One of its components is Alpha Proxima.