The free astronomical programs on this site may be of interest first and foremost a wide audience of people than a professional skilled in the art. They are based on algorithms developed by Steve Moshier, provide highly accurate calculation of positions of celestial bodies and times of astronomical events. To improve the accuracy of determining the location of the observer, geographical maps are used. Calculations are made in the date range from 3000 BC. to 3000 A.D.
For beginners, а glossary of terms is included. The interface language of the programs: English, Russian, Ukrainian, German, French and Spanish.
The Astronomical Almanac app calculates the exact position of the solar system objects, their rise and set, the main characteristics and detailed information specific to the Astronomical Almanac. The onset of lunar phases is also computed. Below are the links for free downloads and screenshots of the program:
The Lunar days app calculates the exact position of Sun and Moon only, their rise and set, the main characteristics, lunar days. Although the calculations are highly accurate, the purpose of the application is more for entertaining than for astronomical observations. For this, the application provides for the possibility of interpreting the meaning of the lunar days in astrological terms. The links for free downloads and screenshots of the program are bellow:
Languages: English, Русский, Українська, Deutsch, Français, Español, 中文
Note. It is important to set the time zone and precise geographical coordinates of the user to obtain the exact time of rises and sets. Also in the settings you can set the height of the observer's location above sea level, atmospheric pressure and temperature (for the scrupulous).
The applications can generate output data in the form of HTML files. Examples of which are given below.