The Barradas system was a planetary system. A planet of this system, Barradas III, was classified as M-class. Approximately two thousand years ago, an outpost of the Debrune was located on this planet. The system was located in the Taugan sector. (TNG: "Gambit, Part I", "Gambit, Part II")
According to the script of the episode, the pronunciation for Barradis was "buh-RAD-us".