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← HistoryWhich positional outcome arose using an astrolabe to compute the time before standardized mean time?
A)Planetary altitude determination error
B)Variation in solar noon duration
C)Discrepancy in local time readouts✓
D)Irregular lunar phase interpretation
💡 Explanation
An astrolabe calculates local solar time using angular measurements; because the equation of time varies throughout the year, `analemma correction` occurs, resulting in the discrepancy between the astrolabe's solar time, and real mean time. Therefore, local time reading differs rather than the altitude being off.
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