Jisho

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てんそくこうほう 天測航法
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Noun
1. celestial navigation; astronavigation; celonavigation​See also 天文航法
Wikipedia definition
2. Celestial navigation​Celestial navigation, also known as astronavigation, is a position fixing technique that has evolved over several thousand years to help sailors cross oceans without having to rely on estimated calculations, or dead reckoning, to know their position. Celestial navigation uses "sights," or angular measurements taken between a celestial body (the sun, the moon, a planet or a star) and the visible horizon.
Read “Celestial navigation” on English Wikipedia
Read “天測航法” on Japanese Wikipedia
Read “Celestial navigation” on DBpedia

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