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... a licensed land surveyor or a trained navigator.

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Wiki User

10y ago
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6mo ago

using instruments such as a sextant or a GPS device. These instruments help in measuring the angle between a celestial object (like the sun or a star) and the observer's location on Earth. By comparing this measured angle with the known angle of the celestial object at a reference location, the longitudinal difference can be calculated. Additionally, using a GPS device can provide accurate longitude readings by receiving signals from satellites in orbit.

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Q: Longitude is best determined experimentally by?
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