Pluto should not be a planet because of its eccentric orbit and small mass. ”The IAU decided that a planet had to be an object to orbit around the sun that was massive enough for gravity to squeeze it into a spherical shape.But, also it had to gravitationally dominant, and that meant it must have cleared its surrounding region of other similarly sized objects. But with everything else out there in the Kuiper belt this was Pluto’s downfall” stated Dr Marek Kukula: "Reclassification changes the way we think about our corner of the galaxy." How Big is Pluto from Space.com states ”Pluto has a mean radius of 715 miles (1,151 kilometers), less than 20 percent that of Earth. Unlike many of the planets in the solar system, such as Earth, Pluto does …show more content…
from CoolCosmos.com stated that “Pluto's average distance from the Sun is 3,670,050,000 miles (5,906,380,000 kilometers). Because Pluto has an orbit that is very elliptical, there is a big difference between its closest distance to the sun and its farthest distance from the Sun. The closest Pluto gets to the Sun is 2,756,902,000 miles or 4,436,820,000 kilometers. The farthest Pluto gets from the Sun is 4,583,190,000 miles or about 7,375,930,000 kilometers” Therefore, Pluto has many objects which have similar size one being Eris which is 27 percent bigger than Pluto. This means that Pluto is not gravitationally dominant, meaning it did not clear its surrounding region, the Kuiper Belt, of other similarly sized objects. It also has an orbit that is very elliptical, meaning there is a very big difference between in closest distance to the sun and it’s farthest distance from the Sun. Furthermore, this classifies Pluto as a dwarf planet, or a spherical celestial body revolving about the sun, similar to a planet but not large enough to gravitationally clear its orbital region of most or all other celestial