This image shows the Eastern Veil Nebula (NGC 6992/6995), part of the Cygnus Loop supernova remnant, captured as a 4-panel mosaic in narrowband Hα and OIII. The intricate filaments trace shock fronts from a stellar explosion that occurred roughly 10,000 years ago, where ionized hydrogen and oxygen glow as the expanding shock wave interacts with the interstellar medium.
Each panel was imaged with a CDK17 + ASI6200MM using Astrodon Hα and OIII filters, with deep integration to resolve extremely fine filamentary structure.
Acquisition (per panel): • 60 × 180s Hα • 100 × 180s OIII
Total integration: 64 hours (4 panels) Processing: PixInsight (calibration, registration, mosaic) + Photoshop Color palette: FORAXX
This post shows a 4K downsample of the full mosaic. The full-resolution image is a ~190-megapixel file (>16K resolution), preserving high-frequency detail across the entire remnant.
This was my main astrophotography project of 2025.
Maybe it's just my screen but the blacks feel blown out and the colors far too saturated :/ what did you do to process this?
Very much over-saturated. To the point where it doesn't look like a nebula. I feel like there's probably a lot of data missing from the blown-out colors.
Maybe I'm just old fashioned, but the veil nebula should be wispy and not straight up opaque.
As much as I really like this target and the data you gathered on it, which is significant, it seems a bit clipped. There is a lot of "wispy" data that is missing around the edges. I appreciate the detail in the finer bits, bit it seems to me you may have clipped a bit more data than you realize. It's a beautiful image none the less, but perhaps not my style. Great discipline for 64 hours btw. That is not easy to stay on target and stitching a mosaic has its own issues that you did well here.
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Sorry there was a wrong total integration time stated. correct is 4 x 8 hours = 32 hours total integration time for the 4 panel mosaic.
the data is apparently with 64 or 32 hours gotta be amazing with rich details but you got some mistakes like the hella blown out colors and not true pallet and some other things like too bright and kinda not opaque i will recommend you just to redo the proccesing all over again
I’ll take the counter point. Any Astro data is “untrue” to a certain extend as soon as you mess w it in pixinsight and photoshop. There is an element of art to ALL Astro images. It’s a matter of taste. I like it