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← HistoryWhich function did the 'Equation of Time' serve in pre-telescopic Islamic astronomy?
A)Compensating sundial inaccuracies over the year✓
B)Correcting for atmospheric refraction effects
C)Predicting lunar eclipse magnitudes
D)Determining star visibility based on altitude
💡 Explanation
The 'Equation of Time' provided a correction factor because sundials measure apparent solar time which varies due to Earth's elliptical orbit, while mechanical clocks & calculations presume uniform mean solar time. Therefore compensating sundial inaccuracies was the key use, rather than refraction, eclipse magnitude, or stellar visibility which use alternative corrections
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