An interesting point about the motion of the planets, stars, earth ect. is that in physics, there is no absolute reference frame. In other words, you must PICK one object or point in space as stationary to even define the location or motion of any other object or point. We can describe the motion of the whole universe in the reference frame of the Earth--it would be very complex mathematically, but no more or less correct than picking any other point as the center of the universe
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