Pluto was discovered in 1930 by American astronomer Clyde W. Tombaugh. Not much is known about Pluto, becuase it is so small and far away. But we do know, Pluto has one satellite (moon), Charon. Pluto and Charon are often thought to be a double-planet system, rather than a planet and a moon. Although the planets in front it are gas giants, Pluto is a small, cold, rocky planet. Pluto is the ninth and smallest planet from the Sun. Its average distance from the Sun is 3,675 million miles. The diameter of Pluto is 1,419 miles. The length of one Plutonian year is equal to 248.54 earth years. One day on Pluto is equal to 6.38 earth days. The temperature on Pluto is usually around -364 degrees fahrenheit. The mass of Pluto is .0022 that of Earth's. The density of Pluto is 2.03 g/cm3. I have a little more scientific information on Pluto. If your interested e-mail me. ***CHARON*** Charon's average distance from Pluto is 12,204 miles. The diameter of Charon is 741 miles. It takes Charon 6.39 earth days to orbit Pluto. One day on Charon is equal to 6,39 earth days. The surface temperature on Charon usually stays around -364 degrees fahrenheit. Charon's mass is .0003 that of Earth's. The average density of Charon is 2 g/cm3. I have a little more scientific information on Charon. If your interested please e-mail me.
Pluto Facts
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