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This program is part of the Q++ Freeware Collection, a series of date and calendar-related programs which have been extracted from the various modules of Q++ Studio and are offered to the general public as freeware. If you have any question about the freeware on this page, or any other page of this website, please don't hesitate to contact us.


The Q++ Sun, Moon and Planets Calculator

Calculates and displays, for any location on the Earth (sample database of over 2500 cities is included), the rising and setting times of the Sun, Moon and other 8 planets, as well as the time of dawn, dusk and solar transit, solar eclipses, lunar eclipses, conjunctions, oppositions, Moon phases, Mercury and Venus transits (such as the recent one of June 8, 2004), occultation of any planet by the Moon, Sun entering each Zodiac sign and Moon entering each Zodiac sign.

Uses high-precision numerical simulation data from the NASA JPL-Laboratory.

Current Version: 1.51 - February 28, 2006

Screenshot              Download it (3.3 MB)


Release Notes

  • Version 1.51: minor bug fix.

  • Version 1.5: you can now ignore refraction and calculate rise/set times based on the center or the bottom of the disk of the Sun and the Moon.

  • Version 1.3: you can now calculate the lunar and solar altitude at any instant (useful for Muslim and lunisolar calendrical calculations).

  • Version 1.2: you can now display the times when the Sun, the Moon and each planet is closest and furthest from the Earth.



Don't forget also to visit our Worldwide listing of bank holidays, legal holidays and public holidays, a detailed and regularly revised list of bank holidays, public holidays and national holidays,
for all 195 countries of the world and all 48 semi-autonomous territories of the world, including all the complex and hard to get holidays (Jewish, Muslim, Chinese, Buddhist, ...).

Alter Ego Services retains full copyright to all the above referenced software and information.