Celestial Navigation
An introduction to the theory.
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Rhumb Line and Great Circle
Single rhumb line, great circle and composite great circle calculations on an ellipsoid (e.g. WGS-84) and not only on a sphere.
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Free software utilities for marine officers and yachtsmen
The celestial navigation software ASNAv is free. Click here to download it (with fix for the latest Windows 10 update).
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