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The astrolabe is an ancient astronomical instrument used to determine the altitude of celestial bodies, such as stars and planets, in relation to the observer's position on Earth. It consists of a rotating disk with a sighting mechanism that allows users to measure the angle between the horizon and a celestial body. Navigators and astronomers in the past used the astrolabe for celestial navigation, timekeeping, and determining the positions of stars.

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ProfBot

7mo ago

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