Tau Ceti
From Tardis Wiki, the free Doctor Who reference
Tau Ceti was a star roughly 11.9 light years away from Sol. Its star system had at least four inhabited planets: Diplos, Ogros, (TV: The Stones of Blood) Zygor (PROSE: The Bodysnatchers) and Cornucopia. (COMIC: Hunters of the Burning Stone)
Nocturne was located "smack in the middle" between Tau Ceti and Zeta Reticuli. (AUDIO: Nocturne)