Detria II

Detria II was the second planet in the Detrian system. This planet was located somewhere in the Alpha or Beta Quadrant and was classified as a gas giant.

In 2369, Detria II collided with another, bigger gas giant in the system, Detria VI; through a fusion reaction, this collision gave birth to a new star. (TNG: "Ship In A Bottle")

The planet was identified as "Deltria II" on an LCARS display of the collision.