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A sextant is used to measure the angle between the horizon and sun, moon, Venus, or North Star

A sextant is used to measure the angle between the horizon and sun, moon, Venus, or North Star. Used (before GPS) for navigation, especially at sea. Latitude can be determined directly (at noon) Longitude requires accurate timekeeping. Analema

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Determined directly - PowerPoint PPT Presentation

A sextant is used to measure the angle between the horizon and sun, moon, Venus, or North Star