Mirfak XI-C was the third moon of planet Mirfak XI in the Alpha Persei star system. It was the site of the Ten-Thousand-Step Stair and methane glaciers. In the year 2275, Hikaru Sulu found himself experiencing the view of a methane glacier from one of the terraces of the Ten-Thousand-Step Stair while aboard the Enterprise which was undertaking one of its final inversion drive jaunts. (TOS novel: The Wounded Sky)