AT: "at" Veridian VI was the sixth of six planets in the Veridian planetary system. This system was located in the Alpha Quadrant. This ringed planet had two moons. It was not an M-class planet and had a bluish hue from space.
In an alternate timeline in 2371, Dr. Tolian Soran's plan to collapse the Veridian sun succeeded and the entire Veridian star system, including Veridian VI, was annihilated by the resultant shock wave. (Star Trek Generations)