The 2017 Nautical Almanac is a software with monthly charts indicating the planets' positions, designed for navigators to accurately plan their voyages while at sea.

This version of the Almanac was created by AstroNav, and the site offers a demonstration version of the software for anyone interested in testing it out. The accuracy of the Almanac matches that of the UK/ US Governments' "The Nautical Almanac," so users can be assured of its reliability.
In addition to its accuracy, the Star Charts found in the 2017 Nautical Almanac are more comprehensive than others on the market. They show not only the positions of the stars but also the locations of the major planets for each month. These features make the 2017 Nautical Almanac a must-have for anyone working in navigation.
Version 2017: 2017 Version. Older editions available at navsoft.com/downloads