Moon

A moon was a large, natural satellite that typically orbited a planet. Some planets were orbited by many moons, while some moons did not orbit any planets but passed through star systems in their own trajectories and were known as "rogue moons." The moon or moons of a sentient species' homeworlds was often the first celestial object that such species perceived and, later in their development, explored both remotely and in person. Some moons were garden worlds, and capable of supporting life; was one such moon.