Near the end of the First War, as the Ur-Quan Kzer-Za were moving into their system, they detonated an explosive device of Precursor design, similar to the Precursor Bomb, in the upper regions of their star, Delta Gorno. The explosion removed a large portion of the outer layer, allowing the dense inner plasma to flare out like a mini-super nova. The massive solar flares destroyed 30% of the Dreadnought fleet. Unfortunately, also as a consequence, the flares wiped out all life on the inner planets, including their own, and nearly led to the extinction of their entire race.
The following is a list of planets and moons in this star system: