The Chinese Lunar Calendar is a solilunar calendar, consisting of months corresponding exactly to lunar cycles and years which stay more-or-less in sync with seasonal years. The structure of the calendar depends on the exact times of certain astronomical events, principally dark moons and winter solstices. The solar calendar consists of ...

... particular day. The program is based on the astronomy calculations which in turn are dependant upon the relative position of the sun, moon and the earth. Moon phases are caused by the positions of the Earth in relation to that of the Sun and the Moon. On an average it ...

... that provides an excellent way to learn about astronomy and explore the sky visible in the distant ... fun, it makes the program very well-suited for astronomy education. Many of the most basic and interesting ... parents who want to share their interest in astronomy with their children, and by educators who want ...

This software allows you to: (i) Display the current phase of the Moon. (ii) Calculate the phase of the Moon for any time in the past or future within a 9000-year period. (iii) Convert between dates in various calendars (three solar calendars, the Gregorian Calendar, the Julian Calendar and the Solar ...

Watch Nasa TV including live space shuttle launches and space walks plus all the Sky at Night programs from December 2001 up to the current episode over the internet plus view live solar images and get ISS (international space station) and satellite pass predictions for your location. View 9 Nasa TV ...

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 from the Hipparcos catalogue, all in real-time 3D. You'll also find galaxies, nebulae, supernova remnants, and the ...

Colliding Galaxies is a program to simulate interacting galaxies. It is possible to create simulations up to one million particles (stars). Colliding Galaxies comes with an external program (Shape Creator) with which you can create every galaxy you can imagine. With several scientific functions you can also calculate the doppler-effect (redshift). ...

Astronomical planetarium in color and easy to use, with which you'll be able to contemplate 28,695 objects of the firmament and the phenomena and the most interesting astronomical movements of the past, the present and the future. You can observe the sky from any Earth place, in the date that you ...

... by Sciterian Technologies, recommended for people interested in astronomy, cosmos, planets, solar system, space flights, science, galaxies, stars, nebulae, the Milky Way Galaxy... It is a very useful presentation on the planet Mars, similar to a 3D game, containing not only visual virtual reality data, but also a comprehensive information ...

Complete astronomy suite comprising a full-featured planetarium, observing log and ... 2nd revised and enlarged edition of Aspects of Astronomy -- a book-length primer covering topics such as ... "Cosmology", "Dark Matter", "Eclipses", and "The History of Astronomy", to name but a few -- are closely ... even read aloud from Astrogloss and Aspects of Astronomy, not to mention offering that most immediate form ...

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. Many hundreds of locations can be stored to include the height of the user and the summertime ...