M6R-867 was an uninhabited planet in the Pegasus galaxy, which held a Stargate. The planet was the home base for the Genii Ladon Radim. He contacted Atlantis from this planet and offered them a Zero Point Module. He later launched his coup here by using a Genii A-bomb to kill Cowen and his Elite Guard. (SGA: "Coup D'etat")

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