answer:Johannes Kepler published his Laws of Planetary Motion in 1609. “First law:The orbit of a planet is an ellipse with the Sun at one of the two foci.” This works for the lunar orbit also; Moon’s path With minor modifications, it works for the orbits of Jupiter’s satellites and even the orbits of binary stars. This can be expanded to the two-body problem in space, also called The Kepler Problem Keeping things simple, these use Newtonian mechanics rather than quantum mechanics and get pretty good approximations. They also use Newtonian gravity, which obeys the inverse square law. ”...a specified physical quantity or intensity is inversely proportional to the square of the distance from the source of that physical quantity.”