The Kriosian system (also known as the Krios system) was an inhabited planetary system in the Beta Quadrant. The system consisted of the primary Krios and the inhabited planet Krios Prime. This system was located on the border of Federation space in the region between sectors 21166 and 22079. The USS Enterprise-D visited the system twice, in late 2367 and in 2368. (TNG: "The Mind's Eye" , "The Perfect Mate" ; DIS: "Magic to Make the Sanest Man Go Mad")