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Interesting links
Astronomy

I cannot take responsibility for the contents of the below links, they have been chosen to supply knowledge and information only.	If you find a broken link, send me an email and I will try to find if there is a new address or if had been shut down : Contact

Content Astronomy:
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Recently added links: New Links	Content non Astronomy: Links Others

Image processing:

https://siril.org/ docs/ sirilic/ (Sirilic)
https://www.youtube.com/ @ deepspaceastro (Siril tutorials, Deep Space Astro)
https://www.youtube.com/ watch?v= dC5hyDeGhKk (Using Deconvolution to Improve the Resolution of Deep-Sky Images in Siril, Deep Space Astro)
https://www.youtube.com/ watch?v= fvYa8Z7R5qw (I had to process 967 sub frames for this, Deep Sky Detail)
https://www.youtube.com/ watch?v= rFDwGnUwOh8 (The Best Free Astro Software just got even BETTER, Nebula Photos)
https://siril.org/ (Siril, 32-bit Astronomical Image Processing Tool)
https://free-astro.org/ index.php?title=Siril (Free Astro: Siril, free image processing software)
http://astrosurf.com/ buil/us/ iris/ iris.htm (IRIS: 16-bit image processing program, Christian Buil)

https://www.youtube.com/ watch?v=wy Y2NRxAtA (Processing The Rosette Nebula in GIMP, AstroPilot)
https://pbleic.medium.com/ star-reduction-in-gimp-a-tutorial-using-wave-decomposition-59d209e53bc6 (Star Reduction in GIMP, Medium)
https://logosbynick.com/ replace-a-color-in-gimp/ (How To Replace A Color In GIMP, Logos by Nick)
https://www.youtube.com/ watch?v= fvYa8Z7R5qw (I had to process 967 sub frames for this, Deep Sky Detail)
https://www.youtube.com/ watch?v= 2EPIUyFJ4ag (GIMP 2.10 Basics: Complete Overview Tutorial for Beginners, Davies Media Design)
https://www.gimp.org/ (Gimp, 32-bit image post processing)

http://www.fitswork.de/ (Fitswork: German image processing program, free)
http://astrofotografie.hohmann-edv.de/ fitswork/ (Help for Fitswork, in German, use Google translator if needed)

https://imagej.net/ij/ (ImageJ: 32-bit image editor/analyze with a lot of plugins for astronomy)

http://deepskystacker.free.fr/ english/ (DSS: Easy to use preprocessing program)

https://www.youtube.com/ watch?v= puoh1ikzonA (How To Do High Resolution Planetary Astrophotograhy, Damian Peach)
https://www.youtube.com/ watch?v= o67hrqJryrI (GraXpert astronomical background extraction, VisibleDark)
https://pscolour.eu/ ad/ idealcols.htm (The system of ideal colours, Pehr Sällström)
https://youtu.be/ fbzE1YcICGU (Astrophotography Stacking SHOWDOWN, Nebula Photos)
https://greatattractor. github.io/ imppg/ (ImPPG, Image Post-Processor, Great attractor GitHub)
http://www.hnsky.org/ astap.htm (HNSKY ASTAP: Astrometric Stacking Program)
https://pixinsight.com/ (PixInsight: Astronomy photo processing tool)
http://www.startools.org/ (StarTools: New software with modern technology)
http://www.astronomie.be/ registax/ (Registax: Planetary image processing program, lucky imaging)
https://iraf-community.github.io/ (IRAF: Professional image processing program, UNIX)
https://youtu.be/ fbzE1YcICGU (Astrophotography Stacking SHOWDOWN, Nebula Photos)