Talthus
From The Stargate Omnipedia
World that once contained the substantial Talthun population. Talthus was subjected to a solar flare that engulfed the planet after a dark star passed too close to the planet's sun. The entire population was believed to have been destroyed.
The only survivors were those who escaped the flare's radiation in three sleeper ships on a course for the world of Ardena. One of the three, the Stromos, crashed on P2A-347 en route, and was discovered by SG-1.
DETAILS
HOME TO - Population Annihilated
FIRST APPEARED - N/A
KEY EPISODE
Lifeboat - SG-1 learns of Talthus' fate when they discover the Stromos, a sleeper ship sent from the planet, crashed on P2A-347.