Muston

Muston was one of the uninhabited lesser planets in Jaconda's star system, the other being Senial. (PROSE: The Twin Dilemma)

Believing that it would save the Jacondans from starvation, Azmael obeyed Mestor and planned to move Muston and Senial into Jaconda's orbit, making them capable of being used for farming. In truth, Mestor's plan was to cause the planets to fall into the nearest star, causing a solar burst that would spread Gastropod eggs across the galaxy. (TV: The Twin Dilemma)