Moon

A moon was a celestial body that circled another celestial body, usually a planet. A planet could have several moons orbiting it, as exemplified by Hisperia, which had two moons. It was also possible for a moon to have moons of its own, though this was quite rare. Like planets, moons came in a variety of terrains, from barren rock to lush forests, and sometimes were referred to as "worlds" when a moon was habitable.

A moon was equally as likely to support life as the planet it orbited and some moons were habitable, such as the moons of Cordelia. In CY 1913, Thalia Mazin and Zar Vox were sent on a mission to Dereth, the moon of Zulmitune, in Apocalypso Ascendant.