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.

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Graphical Results - Good Fix
Graphical Results - Poor Fix
Numerical Results
Star Fix Wizard
Visible Stars and Compass Error
Great Circle