In order for a body to be a planet It has to meet three requirements, 1. it has to orbit a star. 2. it has to have a gravitational pull to control the bodies in its neighborhood. 3. It has to be spherical. Pluto, a dwarf planet is not considered a planet because, it does not have a gravitational pull to control the bodies in the planets neighborhood. Although, it meets the other requirements, it is still not a planet because of this requirement. Another example of a body that is not a planet, is the Moon. The moon is not a planet, because it does not have a gravitational pull to control the bodies in the neighborhood. Also the Moon, does not orbit a star, which makes the Moon, a moon, which means the Moon is not a planet.
No comments:
Post a Comment