P4S-161
From The Stargate Omnipedia
Planet where Teal'c met with several members of the Jaffa resistance movement. When his meeting ended Teal'c attempted to dial Earth, but found he could not achieve a lock. Following protocol, Teal'c instead dialed the Alpha Site.
Teal'c later returned to 161 intending to ask for a Tel'tak so he could travel to Earth. But upon his return to the planet he found the entire rebel movement -- hundreds of warriors -- dead. Not knowing the planet was now the designated location for resistance leaders, The Trust had struck with a symbiote poison-enhanced rocket.
DETAILS
HOME TO - Uninhabited
FIRST APPEARED - Endgame
KEY EPISODE
Endgame - Teal'c returns to P4S-161 and finds M'Zel, who informs him that when he arrived, everyone was dead.