I know that moons tend to orbit their planets in a slightly elliptical orbit rather than a perfectly circular orbit. But for the purpose of this thread, lets assume that moons effectively orbit their planet in a circular orbit. So here is the question... If our moon was struck by an object and sent into an distinctly elliptical orbit around earth, would the moon orbit the earth for a couple of months in an elliptical orbit before slowly self-correcting into a more circular one? And if something like this happened in earths past, do you think this could account for the earths wobble on its axis (Precession)? That is, would this cause the earth to wobble as the moon got near the earth and far from the earth as it orbited on its elliptical orbit?