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More popular programs from this category

Deepsky FREE Deepsky FREE is the free version of Deepsky Astronomy Software. Deepsky FREE is a suite of astronomy software that helps you organize and plan your observing sessions. Some of the things Deepsky FREE can do include creating nice star charts.

Almanac 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

Solar Journey Have you ever been curious about the solar system, or wanted to know more about the sky above us?Why does the sun shine?Why does the moon seem to change shape?What are black holes?Solar Journey answers these questions and more!

Gravity Gravity is a program to simulate the path of move for bodies (i.e. objects with mass) altered by the gravity drive between each other, i.e. a gravity simulator.

Chinese Calendrics A program to convert between dates in various Chinese calendars and dates in the Gregorian and Julian calendars, and to find lunar new year's day and leap months for any year.