You may also be looking for the similarly named Gamma Quadrant star system, the Trialus system.

The Trialas system is a star system near the Borderland, not far from Verex III. (ENT: "Borderland", "Cold Station 12")

• Trialas (primary)
  • Trialas I
  • Trialas II
  • Trialas III
  • Trialas IV