Stellarium is an Open Source planetarium for your computer. Callanish3D for Stellarium is a data package that can be used via Stellarium's "plugin" functionality. Callanish3D for Stellarium
is made available via Creative Commons CC BY-NC-ND 4.0 license.
If you have issues with installation of Callanish3D, please consult the Contact Us/Help page.
As this project is the first Stellarium project to use public 3D data, there are a few rough edges!
If you haven't used Stellarium before, it's worth reading the Stellarium User Guide to understand how to walk about the site, look around and adjust the time options of the sky. There are a myriad of cool options and features to play with.
As a first quickstart, the cursor keys will let you look around and Ctrl/Alt/Option+cursor keys will walk you around. Hold down shift as well to move faster.
There are also some viewpoints configured for the major lunar standstill events available through the "Show Viewpoint Dialog" (on the bottom menu bar or Ctrl+Alt+W on Linux/Windows, Cmd-Option-W on Mac)