Theta Cygni XII

Theta Cygni XII was a planet in the Theta Cygni system, approximately 59.8 light years from Sol. At least one of the other planets in the system was a gas giant.

The planet was inhabited and was one of the worlds infested by the neural parasites. 

The starliner SS Accord was commissioned by the European Hegemony, sometime in the early 22nd century, for an expedition to Theta Cygni XII. (: "The USS Accord Fictional History, v. 3.0")