Wolf 359, the site of the planet simulated in this episode, is a real location. It is a small variable red dwarf 7.8 light years from Earth. It lies within the astronomical boundaries of Leo, but is not part of the visible constellation - with a visible magnitude of 13, it cannot be seen without a telescope, even though it is the third known closest star to our solar system (only the Alpha Centauri system and Barnard's Star are closer). It was discovered in 1918 by German astronomer Max Wolf on photographic plates. Wolf 359 is the star's most common name; it has alternate designations from other star catalogues: CN Leonis, GCTP 2553, GJ 406, G 045-020, LTT 12923, LFT 750 and LHS 36.