Astronomy Shareware / Freeware
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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 in the Chinese Calendar. Can list anniversaries of Chinese lunar dates such as birthdays. Supports 60-year, 60-month and 60-day cycles, includes Chinese names, and allows searching for dates and times of full moons, dark moons, solar terms, equinoxes, solstices and more.
Julian Day Converter
This utility can convert a gregorian date into julian day format/Modified Julian Day format and vice versa. The Julian Day Format counts the day since the 24th november -4713bc. The julian day format is often used in the astronomical section to calculate for example rises.
Lunar Calendars and Eclipse Finder
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 various lunar calendars (Goddess, Meyer-Palmen and Liberalia Triday).
Moon Phase Calculator
Moon Phase Calculator is simple and easy to use tool that allows you to calculate the phase of the Moon for any time in the past or future and to search for the next or previous full moon, new moon or first or last quarter.The day, month, and year can be changed using the keyboard or mouse buttons on the calculator.
Moon Phase Calculator is free, it has small size and user frendly interface. Download it now!
Planet Orbits ScreenSaver
Screensaver that shows a 3D random arbitrary solar system that shows planets with random orbits and textures from real solar system planets and imaginary planets around the sun. It's free of adware,ads,virus,etc... and it's freeware.
StarStrider
StarStrider is a software planetarium that utilizes the latest in 3D-technology in order to show you not only the planets and satellites of our solar system, but also the more than 100 000 stars , all in real-time 3D. You'll also find galaxies, nebulae, supernova remnants, and the band of the Milky Way. StarStrider combines photo realism and scientific accuracy with plain fun and beautiful vistas! Optional add-on with 2 million stars!
World Almanac
The World Almanac displays solar and lunar data for every 30 minutes throughout the day in addition to the times of rise, set and twilight, the lunar phase and a picture of the horizon. Includes database of towns for Australasia(Aus/NZ), Canada. UK and USA covering more than 1600 locations. Although this software was specifically designed for somebody with a camera, it will also appeal to astronomers, fishermen, gardeners and many others.
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