Astrophotography plugins for GIMP 2.10 by Georg Hennig. http://www.hennigbuam.de/georg/gimp.html
Please look at doc/documentation.pdf for details.
Some notes by me (Funxiun);
I did NOT create these plugins. Georg Hennig did. I'm only responsible for the compiling :)
If you want to compile the source yourself in Ubuntu, be sure to have these libraries installed: libgimp2.0-dev libgsl-dev libfftw3-dev
In the release directory you can find the compiled plugins for Gimp 2.10 and Ubuntu (tested on Ubuntu 19.04). You can copy these files to /usr/lib/gimp/2.0/plug-ins and set the correct file permissions (chmod 755 ...)