|Gamma Andromeda V|
Gamma Andromeda is a star system in which a nuclear meltdown occurred in 50 F.E., in Foundation by Isaac Asimov. The meltdown killed several million people and destroyed at least half the planet. It was caused by shoddy-made replacement parts and ill-done repairs performed several decades before. Following the incident on Gamma Andromeda V, the Galactic Empire considered severely limiting the use of nuclear power. Given that the real star Gamma Andromedae, or Almach, is 350 light years from Earth, Asimov may have had this name in mind when writing this line.
Gamma Andromedae is the third-brightest point of light in the constellation of Andromeda.
In 1778, Johann Tobias Mayer discovered that γ Andromedae was a double star. When examined in a small telescope, it appears to be a bright, golden-yellow star (γ1 Andromedae or γ Andromedae A, also named Almach) next to a dimmer, indigo-blue star (γ2 Andromedae or γ Andromedae B), separated by approximately 10 arcseconds. It is often considered by stargazers to be a beautiful double star with a striking contrast of color. It was later discovered that γ2 Andromedae is itself a triple star system. What appears as a single star to the naked eye is thus a quadruple star system, approximately 350 light-years from the Earth.