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a first-person account of the wreck of the Medusa
Edition 24 July 2020
How to use Plastic Sextants 8456-33 Queenscliff 1:5 000How to use Plastic Sextants by David Burch Sextants are used to measure angular heights of celestial bodies above the horizon to find the latitude and longitude of the observer. They can also be used on land with artificial horizons. Sextants can also be used to find the correct Universal Time by measuring the angular distance between the moon and another body along its path across the zodiac. In coastal waters or on land, sextants can be used for
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