> For the Moon, it is less than one! The Sun exerts more force on the Moon than the Earth does. This is not a very good argument though, because the ratio of S

> For the Moon, it is less than one! The Sun exerts more force on the Moon than the Earth does. This is not a very good argument though, because the ratio of Sun influence vs Earth influence only depend on the distance of the orbit from Earth. You can have a 10 ft size rock in a further orbit and Suns exertion of gravitational force would be even stronger! That doesn't make it a planet.