octant points.

The lunar theory is not without its problems. One defect is that the ratio of the maximum to minimum lunar distances implied by the model is 64; 15/34; 7 « 1.9 and so one should observe a doubling of the Moon's apparent diameter as it circles the Earth, whereas in actual fact a change of only 14 per cent is observed. Another objection that was raised by later astronomers was the fact that the epicyclic model seems to be incompatible with the phenomenon - mentioned

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