Siril (opens in new tab)

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). Additional information:Developer: Free-astro TeamLicense: GPL-3.0+Version: 1.4.3<img src=" src=" src="