- #1
xj420
- 8
- 0
Does anyone know or is it possible to know how much percent of Earth's motion is due to the effect of suns gravity? I am thinking very close to 100%, but not exactly 100%. If it were 100%, the Earth's orbit would be a perfect circle; not to mention the orbits or the other planets. So what causes the orbits to be eliptical? Elipcies have 2 focul points. The suns one, what's the other?