Mariner's astrolabe (1 jan 1295 ano – 1 jan 1750 ano)

Descrição:

The mariner's astrolabe was an inclinometer used to determine the latitude of a ship at sea by measuring the sun's noon altitude (declination) or the meridian altitude of a star of known declination, can be found to the earliest date of 1295.

Adicionado na linha do tempo:

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