The moon in his full form is a near perfect circle with arms. He has black eyes, pink cheeks, a mouth and grayish circles at the top of the circle. He is also a very light green. He is also seen in many other forms throughout the first season.
- The Moon is very sensitive, as shown in Moon Problems when Oscar loses the friendship bracelet Moon gave him.
- The Sun said she used to rise as the same time as he did, but after spelling Moon’s name as “Hoot” on a birthday card, he started to rise at a different time.
- Moon has a own home in somewhere in the space (which is an asteroid) and only visits there occasionally.