Last Updated：2025/11/24
Before the voyage, the old navigator taught me how to shift one's tides using a sextant and a nautical almanac to record the tide variations and the positions of the sun and moon in order to calculate their effect on the ship's navigation.
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Before the voyage, the old navigator taught me how to shift one's tides using a sextant and a nautical almanac to record the tide variations and the positions of the sun and moon in order to calculate their effect on the ship's navigation.
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航海に出る前、年老いた航海士は六分儀と航海暦を使って潮汐の変動や太陽と月の位置を記録し、それらが船の航行に与える影響を計算する方法を私に教えてくれた。
