61 Cygni

61 Cygni was a star system used by the Darklings as an enclave following their expulsion from Yuggoth by the Tzun circa 23,000 BC. (PROSE: First Frontier)

Behind the scenes

 * The information on 61 Cygni in First Frontier is a reference to the Blake's 7 episode Killer, where 61 Cygni is in an area called the "Darkling Zone" which is home to an isolated alien civilisation that infects human explorers with a virus designed to kill anyone who's been to deep space.