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Nautical almanac – tools for mariners
Nautical almanac – calculates azimuth, height and other celestial almanac information for Sun and Moon, primary navigation stars and navigation planets: Venus, Mars, Jupiter, Saturn.
In addition, for magnetic compass error calculation, finds Variation (Mag. Declination) for given positon. Calculation of variation is based on the latest World Magnetic Model.
Gyro and magnetic compass error calculator.