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← HistoryWhich consequence would surface when using Ptolemy’s Almagest mathematical model to predict planetary positions long-term?
A)Cumulative positional error increases✓
B)Retrograde motion disappears quickly
C)Orbital speed remains consistent
D)Epicycles perfectly predict ellipses
💡 Explanation
Systematic errors accumulate because the epicycle model imperfectly approximated elliptical orbits; therefore, location predictions diverge, rather than producing accurate, long-term forecasts through updated celestial movements.
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