Siril @siril.org · 08/09/2026Buone notizie: la versione italiana del mio libro uscirà il 15 settembre!! Good news: The Italian edition of my book will be released on September 15!! siril.eu 164
Siril @siril.org · 06/05/2026Good news: we've received the English version!! It's ready to be sent out :). 2105
Siril @siril.org · 25/04/2026If you're not sure whether Siril's new book is for you, you can preview several pages and all the chapters at siril.us Please feel free to leave your feedback here. Shipping begins on May 5. #astrophotography #book #science 160
Siril @siril.org · 23/04/2026The English version of the Siril book is now available. If you want to learn how to process astronomical images with Siril, from the basics to more advanced techniques, this book is made for you. You can find it here: Siril.us 02511
Siril @siril.org · 14/12/2025Pour la communauté française, il est là il est tout chaud. Prêt à être distribué sous les sapins dès cette semaine !! La qualité de l'impression est vraiment très très bonne !! J'espère que vous serez satisfait de la prose. Pour le commander c'est ici : siril.fr 2358
Siril @siril.org · 22/11/2025A new script is now available. It allows you to create HR diagrams on your linear images!!! Have fun 1319
Siril @siril.org · 03/11/2025Enjoying the skies of the Southern Hemisphere! A real pleasure. Only [OIII] and RGB, I didn't have time to photograph Halpha. 1353
Siril @siril.org · 03/10/2025One 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. 1262
Siril @siril.org · 03/09/2025Je 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. 4275
Siril @siril.org · 29/08/2025M27 like you've maybe never seen, lying on a hydrogen sea. More than 26h of exposure with different filters. @astropierre.com 0324
Siril @siril.org · 06/07/2025Amateur imaging cannot observe in the X-ray domain. However, for the jet coming in our direction, a bow shock occurs when the matter meets the interstellar medium and this phenomenon is then visible. 150
Siril @siril.org · 06/07/2025It took until 1971 to understand that this X-ray source in Cygnus was actually a black hole with an orbiting star. Matter spirals into the black hole, forming an accretion disk, with two perpendicular X-ray jets. 150
Siril @siril.org · 06/07/2025But in Cygnus, there's also an "anomaly" detected in the 1960s. A very bright one, the brightest in the sky, in X-rays. 140
Siril @siril.org · 06/07/2025This is the Cygnus region, with the Tulip Nebula. A nebula very well known by astronomers. 140
Siril @siril.org · 06/07/2025Have 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. 25610
Siril @siril.org · 02/07/2025No, Siril is not just software for amateurs. Professionals are using it, and this has become even more apparent since our last publication in JOSS. 0142
Siril @siril.org · 23/06/2025OU4, 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. 5496
Siril @siril.org · 04/06/2025We've just merged a new script. This one is dedicated to smart telescopes !! Many thx to our contributor!! 2120
Siril @siril.org · 09/05/2025Want to know more about your image quality? Our new Python scripting function lets you do just that with a single click. 0111
Siril @siril.org · 02/05/2025Don'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. 0100
Siril @siril.org · 12/03/2025Yes, 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. 3250
Siril @siril.org · 06/02/2025An example of the Chinese version of Siril. Many thanks to the translators!!! 0100
Siril @siril.org · 02/02/2025New version of the python script Distortion 3D map. If you want to analyze your image, this is probably the way to go. 0124
Siril @siril.org · 01/02/2025To all our users of the development version. There's now a python script, that allows you to download local #Gaia catalogs. 0123
Siril @siril.org · 01/02/2025If 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 060
Siril @siril.org · 26/01/2025Ma dernière version de M33, en Halpha seulement Par la même occasion, tu viens de m'apprendre qu'il n'y avait pas de trou noir supermassif en son sein... C'est con, j'ai fait une émission radio sur les trous noirs, il y a peu. 050
Siril @siril.org · 24/01/2025Hey. One last minute feature. The constellation line are now in Siril ;). #opensource 1313
Siril @siril.org · 22/01/2025Here'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. 0162
Siril @siril.org · 22/01/2025Wanna 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... 022
Siril @siril.org · 20/01/2025Python Clarity scripts are now available with a single click in the preference script tab. 0143
Siril @siril.org · 20/01/2025A big step forward for version 1.4! The Python scripting mechanism has been merged into the dev version. 3274
Siril @siril.org · 14/01/2025The result of 13 hours of exposure in Ha. What do you think this galaxy is? 290
Siril @siril.org · 13/01/2025Thank you to the entire community for helping us build a database for our next tool: SPCC. #opensource #astrophotography 1141
Siril @siril.org · 09/01/2025Due to bad weather, I've decided to reprocess a few images. @astropierre.com 1282
Siril @siril.org · 01/01/2025Last picture of the year 2024. The new GraXpert stellar deconvolution tool was used, integrated in Siril. 1292
Siril @siril.org · 20/12/2024Thank you to all the contributors who help us build a free database accessible to all! @nebulaphotos.bsky.social 070
Siril @siril.org · 18/12/2024A H-alpha filter is like a cosmic sieve - it catches only the light from hydrogen atoms emitting at this precise red wavelength. Astronomers use it to map hydrogen across the universe! 🚀 #SpaceObservation 050
Siril @siril.org · 18/12/2024Halpha specifically tracks electrons jumping from level 3 to level 2, creating a perfect red light at 656.3 nanometers. This specific wavelength is a cosmic signature of hydrogen! 🔬 #AstronomicalTelescope 161
Siril @siril.org · 18/12/2024The Balmer series is the visible chapter of hydrogen's light story. When electrons drop to the second energy level, they create a rainbow of colors visible to human eyes - unlike the invisible Lyman series (UV). 🌈 #SpectralScience 110
Siril @siril.org · 18/12/2024Atomic light show explained! 💡 Electrons are energy dancers: - Absorb a photon → Jump to a higher energy level - Fall to a lower level → Emit a photon #Physics 110
Siril @siril.org · 18/12/2024Quantum mechanics breaks the rules of classical physics! Electron energy isn't a smooth slide - it's more like a cosmic staircase. Electrons can only exist at specific, discrete energy levels. No in-between allowed! This is the Bohr model (in fact this is a bit more complicated)🌟 #QuantumMechanics 110
