It's a fun exercise to work out the Gravitational Force between the Moon and the Earth and between the Moon and our Sun. It will surprise many that the Sun exer

It's a fun exercise to work out the Gravitational Force between the Moon and the Earth and between the Moon and our Sun. It will surprise many that the Sun exerts more force on the Moon than the Earth does. So the Earth inflicts a strong perturbation on the motion of the Moon but it's not the dominant gravitational force on the Moon.