Astronomy softwares
useful to Archaeoastronomy


These last twenty years, the popularity of Astronomy did not cease to increase. More and more astronomy softwares became available, indeed. These softwares theoretically allow us to easily recreate the appearance of the celestial vault at a given instant. In practice, none of them however takes into account everyone of the sighting conditions. Of course the latitude, longitude and altitude of the site chosen for observation are required to make the calculations. The values of the temperature and the pressure of the ambient air are generally taken into account as well when quantifying the effects of atmospherical refraction. But what about the atmospherical extinction, the brightness of the sky where the object is and the visual acuity of the naked-eye observer ? Although these photometric quantities are necessary to test the visibility of any celestial object above the horizon, they are never determined nor taken into account within the calculations. So, what is the use of drawing a star close to the terrestrial horizon if it can not be seen from earth ?


Astronomy Softwares


The softwares today are the only ones to give results in good accordance with what is really seen with the naked-eye. The software allowing to determine the days of heliacal setting and rising of any star visible with the naked eye at any terrestrial latitude and at any time between the years 4712 BC and 2012 AD is one of them. The software leading to determine the stars whose sighting of the appearance, transit or disappearance position in the night and twilight skies explains the astronomical orientation of a given monument is another one of them. At your disposal as well, this original program leading to determine the days and hours at which the spring and autum equinoxes as well as the summer and winter solstices occur.

Test every one of these astronomy softwares for free, then discover how easy and pratical they are to use ! Determine for free the days of heliacal setting and rising of the star of Sirius in 2010 AD, the star used to align the temple of Hathor at Dendara in 54 BC or the days of solstices and equinoxes in 2010 AD ! To do so, simply access the introduction page to everyone of these softwares then click on the link free softest.