Doranda

Doranda was a planet in the Pegasus galaxy. It was one of the planets the Atlanteans seeded with Humans, who were described as a peaceful people. During the war with the Wraith, the Atlantean Council ordered the scientists of Project Arcturus to build an Ancient outpost and and conduct research on the project. Eventually, a Wraith fleet arrived, including a hive ship, intending to cull the planet. The Atlanteans of Arcturus activated the weapon, which destroyed the fleet, but also caused hard radiation to kill everyone on the planet, leaving the outpost intact. 10,000 years later, Rodney McKay attempted to complete the Atlanteans work, but ended up destroying Doranda and 5/6ths of it's solar system.