Which refinement did Islamic astronomers introduce to Ptolemy's epicycle model to enhance predictive accuracy?

💡 Explanation

To improve the accuracy of Ptolemy's model, Islamic astronomers introduced the equant point, a point near the center of the deferent from which the epicycle's center appears to move at a uniform angular speed. Therefore, using the equant enhanced predictive accuracy, rather than elliptical orbits, measuring parallax due to limited positional awareness, or applying Fourier analysis due to non-existent signal processing tools.

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