Monday, November 9, 2009
Is The sun a Planet? Is pluto?
Pluto isn’t a planet because it’s not the biggest thing in its neighborhood. There are other things in the kuiper belt. To be a planet it would have to have the biggest gravitational pull in the kuiper belt. Pluto is a sphere and it orbits around the sun it just doesn’t have a very big gravitational pull. My body, the sun, isn’t a planet. A planet needs to be a sphere, needs to have the biggest gravitational pull in its neighborhood and to orbit around….well….the sun! the sun is all of those things except the last one. the sun can’t orbit around itself! it has a diameter 1,392,000 kilometers and it’s a sphere but it can’t orbit itself. so the sun is not a planet.
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