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Pluto. By: Kalynne Pridgen Caitlyn Gillis, Anna Gomez Karina Hernandez. Discovery of Pluto. Pluto was discovered on February18, 1930 by Clyde W. Tombaugh. Discovered at Lowell Observatory in Flagstaff, Arizona. What is Pluto composed of?.
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Pluto By: Kalynne Pridgen Caitlyn Gillis, Anna Gomez Karina Hernandez
Discovery of Pluto • Pluto was discovered on February18, 1930 by Clyde W. Tombaugh. • Discovered at Lowell Observatory in Flagstaff, Arizona.
What is Pluto composed of? • Pluto is composed of: • core of hydrated rock • mantle of water ice • atmosphere containing methane ice This is a difference from the other planets because the other planets are composed mainly of gas.
Pluto’s facts • Pluto is the second largest known dwarf planet. • Pluto is also the tenth largest dwarf planet orbiting the sun. • From 1930 to 2006 Pluto was considered a planet, but now they really consider it a dwarf star. • Pluto’s average density is about 1.8 and 2.1 grams per cubic centimeter. • Pluto’s temperature varies throughout the year because it is sometimes closer to the sun than other times. • Pluto is found in the kupid belt.
More facts on Pluto • Pluto is 3,675 million miles from the sun. • The diameter of Pluto is 1,429 miles. • The length of a year on Pluto is 1,429 earth days.
Pluto’s Moons • When it was first discovered it was thought that Pluto had only one moon. • In 2005 they found 2 more moons, giving Pluto a total of 3 moons. This picture is Pluto and one of its moons, Charon. ↓ This is Pluto, its moon Charon, and the two new moons they found. →
Bibliography • http://www.astro.rug.nl/~onderwys/ACTUEELONDERZOEK/JAAR2000/pluto/aose.html • http://www.solarviews.com/eng/pluto.htm • http://images.google.com/imgres?imgurl=http://www.somewhereville.com/gnw/tas/pluto.jpg&imgrefurl=http://www.somewhereville.com/gnw/tas/other.html&usg=__MZZgzT5b7IfLTFaYVgPma58smk=&h=500&w=500&sz=28&hl=en&start=15&tbnid=bnena_2XKjwftM:&tbnh=130&tbnw=130&prev=/images%3Fq%3Dpluto%26gbv%3D2%26hl%3Den%26safe%3Dactive • http://science.nasa.gov/headlines/y2005/01nov_moonsofpluto.htm