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Steven marquez

on 13 November 2013

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Transcript of "

Astronomer Percival Lowell was the first person who thought there was another planet around Neptune and Uranus. He notice that gravitational pull of something affected the orbits of the two planets. He looked for the planet from 1905 until the day day he died in 1916. The planet he was looking for and known as pluto now was referred to “planet x” was never found until 14 years later.

Planet X

Research Resumed
13 years from lowells death the Lowell Observatory (founded by Percival Lowell) resumed Lowells search. They now had the proper telescope needed for the search of “planet x” They now had a 13-inch telescope built for the purpose of finding “planet x.” Clyde W. Tombaugh, a 23 year old, was hired to the new telescope to find “planet x.”
Planet x Discovered
A year later Tambaugh found “planet x”. The discovery was on February 18, 1930 when tombaugh was examining photographic plates that the telescope created. The however did not announce the discovery until they were certain they found “planet x.” After more research was done they confirmed that Tombaugh’s discovery was a new planet on March 13,1930.

After the planet was discovered it of course needed a new name. The name pluto was chosen on March 24, 1930 after an eleven year old girl named Venetia Burney from england suggested the name Pluto. The name was chosen because of the surface conditions were comparable to the underworld of the Roman God “Pluto.” Also the first two letters in Pluto make the initials in Percival Lowells name.

Planet x's Name

Pluto was then considered the ninth planet in the solar system. It was the smallest planet and half the size of Mercury. It is also only ⅔ of the size of the Earth’s moon. Pluto is the furthest planet from the sun. The surface is made up of mostly ice and rock. It also takes pluto 248 years just for it to orbit the sun once.
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