Even when the mass ratio is yuge there is a little wiggle. When you look at that wiggly sun and jupiter orbit, does it make you wonder how wiggly all the orbits must be? The earth and all other planets are affected by jupiter, and to some extent saturn and uranus.
Also, did you know it only takes 3 orbiting bodies to make a randomness that makes very long term predictions of motion quite difficult. And even at 4 light years away our sun wiggles a bit also from proxima centauri, the nearest (nearly invisible) star.
Oh, also, did you know moving mass around the earth's surface wiggles even the spin of the earth? Tiny amounts, yes, but Newton ftw (equal and opposite)
The universe is very wiggly.
😎😎
I didn't know this! Thank you :D