I have spent a few evenings working on a new plug-in for creating star trails in GIMP.  When asking about stacking star trails the common answer seems to be use startrails.de.  This is great until you don’t run windows.  The other option is a Photoshop action floating about the web.  But this means Photoshop and my trial is about to run out.  So decided to write a plug-in for the gimp that does what the other 2 pieces of software do.

I have tried to make this as simple as possible to use with only 4 options to set.

This is a work in progress and I hope to make this easier to use and more powerful as time passes.

You can get the plug-in from Github

Update

About the time I released this some new multiplatform software was released called Starstax.

After first looks this looks pretty good and it seems to give good results.  This will be something I will test out further next time I do some trails.