P5C-12

P5C-11 is a planet located in the Milky Way galaxy.

Overview
This planet has no breathable atmosphere.

(1997)
During their search of Colonel Jack O'Neill and Captain Samantha Carter, who were missing in action, Stargate Command put a mission to try to locate them, as it is a planet located between Earth and P4A-771, from where SG-1 ran of. According to Doctor Daniel Jackson and Sergent Siler, as Stargates are basicaly giant superconductors, it could discharge the matter stream on another Stargate between Earth and P4A-771.

Later, Daniel receives telemetry from P5C-12; it has no breathable atmosphere anymore, may be since a long and indefinite time.