The 4.1.1 version of AstroGrav is available as a free download on our software library. The actual developer of the software is AstroGrav Astronomy Software. Our antivirus check shows that this download is virus free. The software lies within Education Tools, more precisely Science Tools.
The current installation package available for download requires 23.8 MB of hard disk space. This PC software was developed to work on Windows XP, Windows 7 or Windows 8 and is compatible with 32-bit systems. The most popular versions among the program users are 2.2, 2.1 and 1.9. AstroGrav.exe is the default file name to indicate the AstroGrav installer.
From the developer:
AstroGrav is a full-featured, high precision solar system simulator that calculates the gravitational interactions between all astronomical bodies, so that the motions of asteroids and comets are simulated much more accurately than with planetarium applications.
You may want to check out more software, such as Wintree, f x -Viewer or PolicyMaker, which might be related to AstroGrav.