🎉 Siril 1.4.0 RC1 is out! First Release Candidate with new features, improvements, and bug fixes. 📥 Download: siril.org/download/202... 🐛 Test it and report issues on GitLab! Thanks to our contributors and community! Clear skies! ✨

Enjoying the skies of the Southern Hemisphere! A real pleasure. Only [OIII] and RGB, I didn't have time to photograph Halpha.

This is a mosaic of the Heart Nebula. I really like the result.

One of my simplest images in terms of exposure and processing… yet one of my favorites. Dust and gas clouds weave with distant, reddened galaxies — not the death of a star, but the cradle of many new ones.

Coming soon, a script to reveal all details of your images.

Vu le conseillé scientifique, le film ne peut qu'être bien :). Tous au planétarium !!

Je rappelle que mon livre sur Siril est disponible en précommande ici : siril.fr/commander/ La préface est par Christian Buil (Dieu) et peut être lue ici : siril.fr/wp-content/u... For not French users, The book will be translated in English, Spanish and German before the end of the year probably.

Bonne nouvelle pour les francophones, le livre sur Siril est disponible à la précommande, avec une réduction valable tout le mois de septembre !! siril.fr/commander/

M27 like you've maybe never seen, lying on a hydrogen sea. More than 26h of exposure with different filters. @astropierre.com

Quick teaser of a new script I'm working on for @siril.org. Works for non-smart scope images (but also some smart scopes). Beta testing will start soon. Testers in my discord & Patreon Patrons (including free members) will get access to test: patreon.com/naztronomy #astronomy #astrophotography 🔭

You want to help with Siril SPCC database ? You want to add sensor and/or filter ? This is it: siril-contrib-doc.readthedocs.io/en/latest/SP... And you even have a video at the end of the page. youtu.be/2Kso4GIf5Hw

Have you ever seen evidence of a black hole's existence? Particularly in amateur astrophotography? Take a look at this image here. Do you see it? This is an image taken with Red, Green Blue, OIII and Halpha filters.

No, Siril is not just software for amateurs. Professionals are using it, and this has become even more apparent since our last publication in JOSS.

OU4, the Giant Squid Nebula, is one of the most stunning deep-sky objects — but also one of the trickiest to capture. This image combines multiple filters: R, G, B, Hα, and O III to reveal its incredible detail and structure.

A bit of tweaking of the previous post - Omega Centauri NGC 5139, the largest known globular cluster in the Milky Way - imaged from the backyard. 1.5h of data collected with a Takahashi TOA 130 telescope and ZWO ASI533MC camera. Processed in @siril.org and #GIMP. #astrophotography #astronomy

We've just merged a new script. This one is dedicated to smart telescopes !! Many thx to our contributor!!

1 month after the first beta of Siril 1.4, it is time to release the 2nd beta!!! siril.org/download/202...

Want to know more about your image quality? Our new Python scripting function lets you do just that with a single click.

It's never been easier to use scripts and retrieve new ones! youtu.be/qgOW9mSE8wk

Preprocessing Seestar images in @siril.org has never been easier. Check out my video showing all the magic: www.youtube.com/watch?v=IWl-... #astronomy #astrophotography #Seestar

What is your favorite python script?

Need to play with my data a bit more, but I am thoroughly impressed with the new @siril.org and its ability to stack and stitch mosaics.

Now trying with 3 pannels for this very large field. It's really easy now to merge panels with @siril.org :) Thanks for @ltno2.bsky.social for sharing your raws for training. If you want to see the render : app.astrobin.com/u/Ltno?i=k92...

1 week after release, 23 bugs reported, 18 already corrected. Quite an exciting week :). Thanks a lot.

Don't forget that with Siril's new python feature, there are now plenty of scripts to choose from. Here's one to improve the shape of your stars.

L'étalonnage de la couleur par spectrophotométrie de @siril.org sur la 1.4 beta est juste 🤌👌 Recherche dans la base Gaia DR3 et le catalog de l'ESA. Le profil du filtre et du capteur IMX (sur repo gitlab) est top.

We're looking for a volunteer to develop a Siril snap package. If there's a volunteer in the room, please let me know.

Guess what !! Siril 1.4.0 beta1 is out!!! You can download it and read all the new features at siril.org/download/202... @nebulaphotos.bsky.social @astropierre.com

Pour les francophones

A month ago I posted about an Einstein Ring which I photographed with my backyard EdgeHD 9.25”. Since then I added more data (611x180s) and with careful processing it got a bit clearer still. See #Hubble image for comparison. @celestronuniverse.bsky.social #astrophotography #astronomy @siril.org

Prise de vue incroyable, par le télescope spatial James Webb, de cet immense jet de gaz produit par une très jeune étoile en formation (située en-dehors de l'image, en bas à droite). Par une coïncidence cosmique, l'extrémité de ce jet protostellaire passe juste devant une galaxie lointaine. 1/4

Yes, I know. Still no version 1.4.0. But everything's going well. We're at the bug-fixing stage. Also, script creation is progressing very quickly. Here's a sample script from SetiAstroSoftware -> NB to RGB. Screenshot taken on macOS.

I love the Siril workflow for astrophotography. Lots of scripts to automate what I used to do by hand.

M 42 - Great Orion Nebula/Running Man Nebula 1,344 LY 20 5-Minute Ha/Oiii 373 30-Second Ha/Oiii 379 10-Second Ha/Oiii 5.75 Hours Optolong Duo @siril.org NINA SVBony SV503 70 ASI533MC Pro Astroasis @skywatcherusa.bsky.social HEQ5 PRO #astrophotography #greatorionnebula #DSO @kat-astro-bot.bsky.social

An example of the Chinese version of Siril. Many thanks to the translators!!!

New version of the python script Distortion 3D map. If you want to analyze your image, this is probably the way to go.

To all our users of the development version. There's now a python script, that allows you to download local #Gaia catalogs.

If you, too, would like to help Siril grow up. And if you speak a language other than English, then it's possible to take part in the translation. This is here: weblate.siril.org

Wow, I don't know what's going on, but we have a lot of followers in the last 24 hours :). Thank you :).

We may be considering abandoning AppImage binaries, as it's becoming difficult for us to maintain them. However, if we could find a volunteer to maintain and debug them, we could keep them. Please contact us.

Hey. One last minute feature. The constellation line are now in Siril ;). #opensource

Lovely

Here's an example of what a Siril script can do. Here, it retrieves the brand-new Gaia DR3 catalog we've built for local use. It's even possible to preview it. Siril has just changed planet.

Wanna be part of the Siril journey? You can create an account at our Weblate website and translate Siril into your own language. weblate.siril.org/projects/sir...

Siril 1.2.6 is out. Let's download it and check for the news at: siril.org/download/202... This is probably the last version of the 1.2 series.

Are you a Python developer? Siril now accepts Python scripts in its development version. Start making your python script now, before the upcoming release of 1.4. siril.readthedocs.io/en/latest/sc...

Python Clarity scripts are now available with a single click in the preference script tab.

A big step forward for version 1.4! The Python scripting mechanism has been merged into the dev version.

Et d'ailleurs, actuellement dans l'équipe de Siril nous sommes en train de construire une version offline de Gaia DR3. !! And also, the Siril team is currently building an offline version of Gaia DR3!