Callisto

Callisto is one of the 4 Galilean Moons orbiting Jupiter. She is the most heavily impacted major object of the Solar System. She's one of the nicest moons of it, and is best friends with Luna. She is also the 3rd largest moon in the system.

Personality
Callisto is one of the nicest moons. She's kind and caring, and is always willing to help and make other moons' days better. She is very similar to Luna, and is best friends with her as well. Luna has given Callisto a slight interest in science, thanks to Luna 's mother, Earth.

Appearance
Callisto is a brown-ish moon, with different tones in certain places of her surface. She's allso full of craters, as a matter of fact, she is the most heavily impacted major object of the system.