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Aug 31, 2018 at 20:51 comment added Rodney Dunning In the geocentric model, Venus is always positioned between the Earth and Sun and is constrained to never be far from the Sun. Therefore, the model predicts it will exhibit only crescent and new phases, and will never exhibit gibbous, quarter, or full phases. (And yet it does.) Because the Earth is immobile in the geocentric model, we observe the stars always from the same vantage point. Thus, the model predicts we will never see stellar parallax. (And yet we do.)
Aug 31, 2018 at 8:16 comment added plotop Can you explain how the geocentric theory contradicts above statements too. Thanks
Aug 30, 2018 at 17:44 history answered Rodney Dunning CC BY-SA 4.0