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VoyageurDjaffar partage une <a href="https://pixelfed.social/discover/tags/astrophographie?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrophographie</a> de <a href="https://pixelfed.social/discover/tags/m51?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#m51</a> qui fusionne avec sa <a href="https://pixelfed.social/discover/tags/galaxie?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#galaxie</a> voisine <a href="https://pixelfed.social/discover/tags/ngc5195?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#ngc5195</a> Plus de 19h de pose en bande RGB et HAlpha Télescope : Sky-Watcher 200/800 et Monture Eq6-r Pro Logiciels : <a href="https://pixelfed.social/discover/tags/NINA?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#NINA</a> et <a href="https://pixelfed.social/discover/tags/PixInsight?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#PixInsight</a> <a href="https://pixelfed.social/discover/tags/astronomy?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a> <a href="https://pixelfed.social/discover/tags/astronomie?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomie</a> <a href="https://pixelfed.social/discover/tags/astrophotography?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrophotography</a> <a href="https://pixelfed.social/discover/tags/astrodon?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrodon</a> <a href="https://pixelfed.social/discover/tags/galaxy?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#galaxy</a>

Paul HThought I'd take another crack at processing data from a year ago of NGC6888 "The Crescent Nebula"Telescope: Evostar 72ED Camera: ASI 1600MM Software (Capture): N.I.N.A. Software: (Processing): <a href="https://mastodon.online/tags/Siril" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Siril</a>, <a href="https://mastodon.online/tags/Pixinsight" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Pixinsight</a>, <a href="https://mastodon.online/tags/darktable" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#darktable</a> <a href="https://mastodon.online/tags/astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrophotography</a> <a href="https://mastodon.online/tags/photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#photography</a> <a href="https://mastodon.online/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a>

DanaNothing super special about this image, except I used a brand new process for me. Instead of using DBE, GraXpert, or any other software solution for fraudulent removal, I used a process called Multiscale Gradient Correction and described in this tutorial: <a href="https://pixinsight.com/tutorials/multiscale-gradient-correction/index.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://pixinsight.com/tutorials/multiscale-gradient-correction/index.html</a>It's a little complicated to go through the process, but the gist of the idea is that on a wide image you can correct the gradients better over a small area compared to a tighter field of view. So you take a wider image, correct the gradients, then subtract the corrected wider field from the tight field to give you only the gradients, which you subtract from your tight field image. I was pleasantly surprised at how well it worked, taking out gradients I didn't realize were there. It made me want to take a wide field shot of all my targets so I can correct gradients better.<a href="https://astrodon.social/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astrophotography</a> <a href="https://astrodon.social/tags/Pixinsight" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Pixinsight</a>

robalright, first toot. data from early 2014, tmb92ss + mach1GTO + STT-8300M with astrodon gen2e filters. reprocessed in july 2022. 13h50m total integration time. <a href="https://sfba.social/tags/pixinsight" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pixinsight</a> <a href="https://sfba.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrophotography</a> <a href="https://sfba.social/tags/orion" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#orion</a> <a href="https://sfba.social/tags/M42" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#M42</a> <a href="https://sfba.social/tags/messier42" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#messier42</a> <a href="https://sfba.social/tags/astro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astro</a> <a href="https://sfba.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#space</a> <a href="https://sfba.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astronomy</a>

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