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Sh2-157, NGC 7635, Sh2-155, NGC 7538 and much more

lxkor
891508
Category:Deep Sky
Published:
1819
Sh2-157, NGC 7635, Sh2-155, NGC 7538 and much moreNGC 7419NGC 7429NGC 7510NGC 7538NGC 7635NGC 7654IC 1470
Resolution:
2948x2879 px
File size:
5627 KB

Technical information

Telescope/Lens
Samyang 135mm f/2 ED UMC
Camera
ZWO ASI533MM Pro
Mount
Proxisky UMi 17 Lite Mount
Guide Scope
SV Bony SV165 40mm
Guide Camera
ZWO ASI678MM
Accessories
ZWO ASIAIR Mini, ZWO EFW-S, ZWO EAF
Software
Siril, GraXpert, Adobe Photoshop, Seti Astro suite
Location
Липецк, Россия

Light pollution

Yellow, Bortle 5 zone

Date taken
astrobin.com/h7irrq

Exposure

  • 42 × 300″ · ISO/Gain: 100 · Ha ·
  • 41 × 300″ · ISO/Gain: 100 · OIII ·
  • 36 × 300″ · ISO/Gain: 100 · SII ·

Total exposure: 9 h 55 m

Comments

CatS
Green is abundant; I recommend accumulating more sulfur and oxygen than hydrogen.
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CatSReply to CatS
About twice as much
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lxkorReply to CatS
I'm not entirely sure about the advice. If I'm not mistaken, accumulating signal improves the signal-to-noise ratio, but the amount of hydrogen or oxygen present remains the same—it's just that the noise is reduced. You can stretch different channels more aggressively, but I tried to roughly align the black point and histogram peaks.
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CatSReply to lxkor
Oxygen and sulfur will appear "more prominent." You can then balance their brightness during processing, which will bring out more "refined" hues.
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lxkorReply to CatS
Alright, worth a try.
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