Install siril by entering the following commands in the terminal:
sudo apt update sudo apt install siril
Description:
astronomical image processing tool
Siril is an image processing tool specially tailored for noise reduction and improving the signal/noise ratio of an image from multiple captures, as required in astronomy. Siril can align automatically or manually, stack and enhance pictures from various file formats, even images sequences (movies and SER files).
Homepage: https://free-astro.org/index.php/Siril
Version: 0.9.8.3-1
Section: universe/science