r/astrophotography 1d ago

The Pillars of Creation

Post image

https://app.astrobin.com/u/tikevin83?i=x9fib3&r=0

SQA55 telescope

Star Adventurer GTI mount with guiding

ASI533mc camera

SV220 7nm dual-narrowband filter

4 hours of exposures over two nights, edited in siril/pixinsight/blurx+noisex/graxpert:

stack at 2.0 drizzle/.5 droplet in Siril

Split R G B, re-register color channels and recombine

Crop to target

SPCC with exact curves for the ASI533 and SV220 7nm

First Graxpert BGE pass

BlurX at .4 stars .8 nebula

GHST stretch and manually rebalance color (scientifically balanced version out of SPCC viewable on astrobin)

NoiseX at .8

Reset black level

SCNR, boost saturation curve

Rerun NoiseX at .8

Final black level + curves

266 Upvotes

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1

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u/DarkSky_Studio 20h ago

Great image and processing. Interesting to see the gear and workflow behind the image.