Downloading TiltingSun 3.0 from our website was free. The program's installer is commonly called tiltingsun.exe, tiltingsun201.exe, tiltingsun250.exe, tiltingsun270.exe or tiltingsun300.exe etc. Our antivirus scan shows that this download is malware free. The most popular version among the program users is 3.0. The actual developer of the free program is atoptics. The program is categorized as Education Tools.
From the developer:
The Sun's and Earth's rotation axes are both tilted with respect to the ecliptic, the plane of the Earth's orbit around the Sun. This causes the Sun's poles to appear to point in different directions throughout the year as seen in an equatorially mounted telescope. Use an altazimuth mount or camera tripod and things get more complicated!
You may want to check out more software, such as Avantage BPM Foundation, Adding Machine or gitoolbox, which might be related to TiltingSun.