Stennos, designated PG7-782 by the Tau'ri, was a planet in the Milky Way galaxy which held a Stargate. (RPG: "First Steps: The Stargate Unexplored Worlds Roleplaying Sourcebook")

The planet once belonged to the Goa'uld Zeus. Large tracts of the planet's surface is covered in forests so much so that a squirrel could run for a thousand miles without touching the ground. It actually rotates in the opposite direction of earth, so the planet's primary rises in the west. It had 14 continents, of which the largest is roughly the size of South America.

Approximately 500 years ago an Asgard Light warship engaged 5 Ha'tak and crash landed on the planet, where the Asgard controlling the vessel attempted to upload to a clone body. The process was partially successful but resulted in amnesia of most his memories, the Asgard was quickly mistaken for Zeus returned and worshipped by the people.