Программа для астронавигационных расчётов. Можно расчитать поправку компаса или позицию. Одна из самых удобных имхо.
Описание с официального сайта:
http://www.promarsoftware.com/products/skymate.aspSkyMate Pro uses date/time information entered into a DR Toolbar to calculate a number of various almanac functions. The flexibility of the DR Toolbar allows the user to quickly change date/time and position information for the various celestial functions available. Although features are available to project a DR position to various times and dates, the program does not require you to maintain a DR position in order to calculate the various celestial functions.
Скриншот:
Скачать версию 1.02:
http://www.megaupload.com/?d=3OG8EDXH