CyberSky is an accurate, yet easy-to-use planetarium program that provides an excellent way to learn about astronomy and explore the sky visible in the distant past, the present, and the far-off future.
License:Shareware, $34.95 to buy Size:7.69 MBLatest Update:2011-10-04
A program to search for eclipses (lunar, solar, total, annular and umbral), to calculate the phase of the Moon at any given date and time and to convert between dates in the Gregorian and Julian calendars and dates in five lunar calendars.
License:Shareware, $14.95 to buy Size:1.6 MBLatest Update:2014-03-21
Almanac calculates the equatorial coordinates of the sun, the moon, and the planets. From these it calculates the times of rise, set, and meridian transit for each of these celestial bodies. Additionally, it can calculate the times for twilight
License:Freeware, $0 to buy Size:587 KBLatest Update:2013-06-22