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Today's Date and GMT:
April 23, 2019    11:57:20
Celestial Navigation
Combined nautical almanac and sight reduction calculator. Nautical almanac is good to 2050 and covers planets, moon, sun, and 57 navigational stars. Sight reductions require an accurate chronometer and sextant.

Great Circle Calculator
Calculates a great circle route in 100 nautical mile increments. Just enter starting point and destination.

Dead Reckoning Calculation
A work in progress.

Star and Planet Identifier
Don't Hold your Breath