P9X-757 was a planet controlled by the Goa'uld Apophis. In July 2000, XCOM raided the planet and stripped it of anything useful using the stargate they acquired from the bottom of the ocean. The planet was guarded by several dozen Jaffa though it was quickly reduced to zero by XCOM. The planet was also the location where Apophis was building a new class of mothership when SG-1 attacked the planet to sabotage the construction of the ship several weeks earlier.