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Now we come to the last planet in our Solar System, Pluto. The temperature of the planet is a frosty minus 233 degrees Celcius. The seasons on Pluto are quite long. A summer on the planet occurs when the planet is at its nearest to the sun and lasts about 50 years. This is also the only time when the planet's frozen surface of methane and nitrogen vaporize by the small amount of heat from the Sun to create somewhat of an atmosphere. By 2020, the atmospheric gases of Pluto will once again be frozen to the surface of the planet as it makes its way away from the Sun and will stay that way for more than a century. The long slugish seasons of the planet are due to Pluto’s 248 year orbit. For 20 years of Pluto’s orbit, the planet is actually the eighth planet from the Sun as it passes by Neptune’s orbit. Right now Pluto is ranked the eighth planet, but will only be there for a short time because in 1999 Neptune will regain its rank. Although Pluto may look like it passes through Neptunes path, it is actually millions of kilometers away.

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16y ago

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