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← HistoryWhich outcome occurred using historical astrolabes on ships that sailed near the poles?
A)Increased magnetic compass deviation error
B)Accurate declination value determination
C)Difficult altitude data measurement✓
D)Enhanced day length computation speed
💡 Explanation
Difficult altitude measurements occurred at high latitudes on ships using astrolabes because increased latitude causes lower altitude stars, weakening the instrument's Angle measurement accuracy due refraction, causing errors; therefore, data was less reliable, rather than more stable for navigation.
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