Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  52 Cyg  ·  BW Vul  ·  IC 1340  ·  LBN 191  ·  LDN 868  ·  NGC 6960  ·  NGC 6974  ·  NGC 6979  ·  NGC 6992  ·  NGC 6995  ·  Sh2-103  ·  T Vul  ·  The star 52 Cyg  ·  Veil Nebula
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Veil Nebula/Cygnus Loop - Ha/OIII/SII - 4-panel mosaic, dswtan
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Veil Nebula/Cygnus Loop - Ha/OIII/SII - 4-panel mosaic

Getting plate-solving status, please wait...
Veil Nebula/Cygnus Loop - Ha/OIII/SII - 4-panel mosaic, dswtan
Powered byPixInsight

Veil Nebula/Cygnus Loop - Ha/OIII/SII - 4-panel mosaic

Equipment

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Acquisition details

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Description

Zoomable: https://zoomhub.net/p5No5

Final version 4-panel. Ha, OIII, SII. Color combination based on a recipe for Dynamic NB combination as posted here: 
https://thecoldestnights.com/2020/06/pixinsight-dynamic-narrowband-combinations-with-pixelmath/

Never successfully done more than a two-panel mosaic, but the big step on this one was the first time I've done remote astrophotography -- most of the panels were taken at home in California while I was on a business trip in Seattle.

Was also the first time using WBPP to process all the panels in one go - nice! OBJECT keyword, Post only. But did use APP to stitch, since I find PI's mosaic tools incomprehensible.Kudos also to APP for very nice light pollution tool, which I failed to coax PI into fixing in my first draft.

Submitted to Goofi's Imaging Challenge July 2022 here:
https://www.cloudynights.com/topic/830557-goofis-imaging-challenge-july-2022-cygnus-loop/

Capture: 50x 60 sec per filter per panel, unity gain, total 10hrs session.

Processing: PI WBPP, APP 4-panel Mosaic per filter, PI Star Alignment between filters, Dynamic Crop to trim edge artifacts, Color Combination (HOO), NoiseXterminator, Background Neutralization, EZ Soft Stretch, Starnet 2, APP light pollution tool, back to PI, CurvesTransformation on nebula and stars separately, another NoiseXterminator on the nebula, EZ Star Reduction on stars, PixelMath to add stars back, CurvesTransformation again, over to Lightroom for final aesthetics.

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Veil Nebula/Cygnus Loop - Ha/OIII/SII - 4-panel mosaic, dswtan

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