Being based on Ubuntu, Gnome 3 is the desktop environment provided with the Astronomy Linux.
Screenshot of Astronomy Linux showing some of the pre-installed software, including AstroDMx Capture for Linux.
Both the standard and debug versions of AstroDMx Capture can be seen on the first page.
Astronomy Linux is being actively maintained and may be the way to move to Linux from another OS and have many astronomy programs immediately available to use.