An astronomical image processing tool

An animation of comet Neowise created by a Siril’s user

Comet NeoWise in the evening sky – above Brünstelkreuz mountain (1734m) The author: Frank Stefani is a beginner in astrophotography (since 6 months),and also been a professional photographer and experienced visual-only astronomer for over 4 decades. Bravo, I love this picture! Source:

Python to generate Siril script for cooled OSC

A big thank you to Cecile for sharing, maybe it will give you some ideas, so follow this link: Clear skies, Laurent

New videos are available


Week recap

An article from “Libre Graphics World” talks about Siril

Take time to read this new: Week recap from “Libre Graphics World” 🙂 Follow this link:

Introduction to siril’s GUI

Here is a video in English that presents the new interface of Siril. It will be followed by many others in order to present all the features of the Siril software. Remember to subscribe to our youtube channel.

Siril joined, the largest free/open photography community.

We are proud to announce that Siril has joined, the largest Free/Open Source Photography community. Like other softwares such as The Gimp, Darktable or RawTherapee we now have a forum at this address: Thank you for asking your questions on this new forum. Clear Skies, Laurent

Siril is available on flathub

Command line instructions Install: Make sure to follow the setup guide before installing flatpak install flathub org.free_astro.siril  Run: flatpak run org.free_astro.siril

Siril 0.9.12 available on macOS

It is Christmas for all macOS users right now. Indeed, 0.9.12 version has been now released for this platform. You can then go to the Download section in order to get it right now.

Siril 0.9.12 is available

We are glad and proud to announce the release of the new Siril version: 0.9.12. This version containing a lot of improvement is accessible through the download section. For more information about the new features, please follow this link.

Siril’s use in physics

Siril is not only used by amateur astrophotographers, but also by physicists from a completely different field! Source: