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← HistoryWhich adaptation enabled medieval Islamic astronomers to enhance astrolabe accuracy despite atmospheric refraction effects?
A)Larger instrument diameter for scaling
B)Adjustable sighting vanes (alidades)
C)Mathematical correction tables for altitude readings✓
D)Gold plating reflecting error propagation
💡 Explanation
When atmospheric refraction distorts celestial positions, Islamic astronomers developed mathematical correction tables because refraction's impact varied predictably with altitude, adjusting astrolabe readings. Therefore correction tables increased accuracy, rather than diameter increase, vane adjustments, or surface coating which address other limitations.
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