siril(1) image processing tool for astronomy and others


siril [-i conf_file ] [-f] [-v] [-h] [image_file_to_open]


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, stack and enhance pictures from various file formats, even image sequences (movies and SER files).


Starts Siril with configuration file name in argument
(or --format) Prints all supported image file formats (depending on the libraries detected at compile-time)
(or --version) Prints program name and version and exit
(or --help) Short usage help
Open an image right after start-up. It can be a SER of film sequence file as well


User preferences. Overridden by the -i option.
The stylesheet used to change colours of the graphical user interface. This is useful for personalisation or if a GTK theme is incompatible with some coloured elements of Siril.


A list of bugs is maintained in a mantisbt bug tracker, available at


Vincent Hourdin <debian-siril at>