Don't try to sound smart when you're not. What you're saying is all about reference points. When viewed from a reference point that isn't affected by either the sun or the earth, it becomes quite obvious that the earth is moving around the sun. Or could the earth be banana-shaped too? Look, I'm not saying you're completely wrong. Some things can't be proven. However, you were talking about observation based on reference points, but this is simply about the movement.