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← HistoryWhich outcome occurred when 18th-century mariners relied solely on sextants during overcast conditions for weeks?
A)Increased longitudinal navigational error✓
B)Improved estimation of true heading
C)Precise celestial position determination
D)Accurate real-time tidal prediction
💡 Explanation
Sextants measure latitude, but require celestial visibility. Starvation significantly increased positioning errors because dead reckoning had to be be used which incorporates accumulated inaccuracies from estimated speed and heading; therefore, longitudinal error increased, rather than decreasing because star shots weren't possible.
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