Pluto is usually the outermost planet but it is my favorite planet because of it's orbit. Pluto is very eccentric so it moves inside Neptunes orbit for some time, making the planet Neptune the outermost planet.
The diameter of Pluto is about 2400km. It is probally composed of frozen water, methane, and amonia. Pluto revolves around the sun every 250 years and at least one natural satellite, and that is Charon.
