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← HistoryWhich effect arises when an astrolabe constructed using inaccurate trigonometric tables is used for celestial navigation at sea?
A)Accumulated positional error over long voyages✓
B)Accelerated corrosion of the instrument's metal
C)Disrupted communication between sailors
D)Unreliable timekeeping affecting tides
💡 Explanation
When an astrolabe relies on inaccurate trig tables, systematic errors in angle calculations arise because derived celestial altitudes and azimuths deviate from true values, resulting in accumulated positional error during ongoing navigation. Therefore positional error accumulates rather than acceleration of corrosion, disruption of crew communication or affecting of timekeeping which are independent from geometric accuracy.
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