INDEX NEXT UP LAST ATG Pluto Pluto


Pluto is very small compared to the other planets, and also the furthest planet away from the Sun. Pluto has methane ice or snow on its surface and an atmosphere consisting of mostly methane gas. Therefore, the colour of Pluto is slightly reddish. The mass of Pluto is approximately 1.2 x 1022kg. The orbit of Pluto is elliptical with a period of revolution about 248 years. Observations show that the moon of Pluto, Charon, is approximately half the size of Pluto, making Pluto and Charon closer in size than any other planet and moon in the solar system. Because of this, Pluto is sometimes referred to as a double planet. [VH] {SR} {EP} {EB}


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