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Index/Topics/Celestial Navigation

Celestial Navigation

The practice of using celestial bodies to determine one's position on the Earth's surface.

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Jan 29, 2026
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What experiments have debunked flat-Earth claims about GPS accuracy and triangulation?

Global Positioning System () and triangulation claims by proponents have been tested and falsified through both formal analyses and practical experiments: engineers and academics show GPS positioning ...

Jan 30, 2026

How do nautical almanacs and celestial navigation tables mathematically rely on a spherical Earth?

Nautical almanacs and tables embed a at every step: they give the geographic position (GP) of celestial bodies in latitude and longitude, build sight-reduction tables and position circles from those G...