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1) Engelbert, Phillis, and Diane L. Dupuis. The Handy Space Answer Book. Detroit, MI: Visible Ink, 1998. Print.
2) "The Girl Who Named Pluto." The Girl Who Named Pluto. N.p., n.d. Web. 15 Nov. 2012. <http://www.librarising.com/space/plutogirl.html>.
3) "Pluto, the Ninth Planet That Was a Dwarf." Space.com. Space.com, n.d. Web. 15 Nov. 2012. <http://www.space.com/43-pluto-the-ninth-planet-that-was-a-dwarf.html>.
4) Scalzi, John. The Rough Guide to the Universe. London: Rough Guides, 2008. Print. Pluto Pluto was named by an 11 year old girl, named Venetia Burney. She lives in England, and is the great niece of Henry Madan, in the past, he named two moons from mars. On march 14th 1930 she suggested the name to her grandfather, who found the planet. She suggested the name Pluto, after the roman god of the underworld. The first two letters of Pluto, are the initials of her grandfather, who is very important to her. On May 1st 1930, the name Pluto, became public. Pluto was discovered in 1930, by american astronomers. Pluto was found in the in the Lowell observatory in Flagstaff, Arizona. Clyde Tombaugh and other astronomers, were looking for photographic plates, when they came across Pluto. When they found Pluto, they considered it as the ninth planet. Years later they realized that because of Pluto's orbit, and how it overlaps with Neptunes orbit, so it can no longer be a planet, now Pluto is a dwarf planet. Pluto only has one moon, called Charon. Charon is covered in ice and methane ices. Charon is more than half the size and about 20% the mass of Pluto. Charon and Pluto have the exact same orbital period. Average distance from sun: 3.647 billion miles
Diameter: 1485 miles
Rotation: 638 days
Orbital period: 248 years
Average temperature: -375 F (-95 C
Axial tilt: 122.5 degress
Gravity: 1.9 ft/s2
Pluto is very icy and rocky
Pluto is smaller than many moons, including Neptune's moon, Triton. All the sites and books I used