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2017 Nautical Almanac including monthly charts with the planets' positions

Combine multiple sights on different tracks. Data available for 9999BC to 9999AD including a Star Atlas, twilights and eclipses. It will print conventional Nautical Almanac pages while the voyage plan is a sophisticated tool in its own right.

Complete 2011 Nautical Almanac in pdf format. Includes monthly star charts with the planet's positions.