Why don't you show where the 2.1 degrees comes from if the Sun is orbiting the Earth? Which you agreed is the case. Why don't i do a geocentric model?
You have ascribed geocentric attributes to a non-centric model.
To: FichoriDo you thin that, If the Sun and Earth were perfectly motionless in space, except the Earth was rotating 360° every 24 hours, would (at high noon, sans the atmosphere) the optical image of the Sun be lagged 2.1° behind its gravitational pull?Yes, up to 2.1 degrees.
Well, because right now we're doing a stationary binary model with a single body rotation.
No, you are the one that said that you didn't know how to model the two stationary bodies with one rotating. However you did say that if the Sun were orbiting the Earth then it would have a 2.1 degree lag. Show that.
You will find there is no difference in the two models : )