- "The High Council of the Asgard has designated Cimmeria a safe world for developing sentient species by unanimous decree, Era 40.73.29. The Goa'uld System Lords were so informed."
- ―Thor
Cimmeria, designated both P3X-974 and P3X-794 by the Tau'ri, is a planet under the protection of the Protected Planets Treaty, with the dominant race being the Cimmerians, who are descended from northern Europeans. The Cimmerians firmly believed that the Asgard were gods that protected them until the Asgard decided that their deception was no longer necessary following their contact with the Tau'ri.
The planet's primary method of defense is a device called Thor's Hammer, which is capable of detecting symbiotes, and especially those of the Goa'uld. (SG1: "Thor's Hammer")
Also on this planet is the Hall of Thor's Might, which is a cavern where the Cimmerians are tested for the determination on their level of advancement as a society in a whole in general and as individuals in particular. (SG1: "Thor's Chariot")
As a result of the incident where Thor's hammer was disabled, and Heru'ur's subsequent invasion and defeat, an Asgard teacher was left on Cimmeria to assist them in rebuilding the planet, and educating the people. It is unclear how much the Asgard would educate the people. (SG1: "Thor's Chariot")
Behind the scenes
Stargate SG-1: The DVD Collection issue 10 had a misprint which gave the address of this planet as being the same as that for Memphis. In addition to this, issue 14 gave an address which contained the point of origin for Abydos, which is impossible because that symbol is unique to the Abydos Stargate.