Astronomical
ActiveEarth 3.0

ActiveEarth is a world time clock with a gorgeous day/night merge of NASA's Visible Earth images in flat maps or a globe. It has accurate time zone data for more than 500 cities, and you can add more, and each city and clock can display weather conditions and forecasts. AE has dozens of scalable analog and digital clock styles. Graphical time difference tools to plan events between cities. Screen-saver, desktop background, time calculator, more!
- License: Demo
- Language: English
- Release: 2008-09-01
- Size: 3 Mb
- Cost: 24.95 $
AstroNav 1.1.6

Using the same standards of accuracy as published tables but with a catalogue extending beyond Barnard's Star; it can be used to combine multiple sights, a definative astronomical reference or simply to print daily Nautical Almanac pages.
- License: Shareware
- Language: English
- Release: 2010-10-14
- Size: 8 Mb
- Cost: 32.00 $
Chinese Calendrics 12.09

A program to convert between dates in Chinese, Vietnamese and Japanese lunar calendars and dates in the Gregorian and Julian calendars, and to find lunar new year's day and leap months for any year in the Asian calendars. Can list anniversaries of lunar dates such as birthdays. Supports 60-year, 60-month and 60-day cycles, and allows searching for dates and times of full moons, dark moons, solar terms, equinoxes, solstices and more.
- License: Shareware
- Language: English
- Release: 2011-08-09
- Size: 1 Mb
- Cost: 28.75 $