Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888  ·  The star 25Cyg  ·  The star 28Cyg  ·  The star 29Cyg  ·  The star 34Cyg  ·  The star 36Cyg  ·  The star 40Cyg  ·  The star 42Cyg  ·  The star Sadr (γCyg)
Sadr and Crescent Nebula, Usernamealreadytaken
Sadr and Crescent Nebula
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Sadr and Crescent Nebula

Sadr and Crescent Nebula, Usernamealreadytaken
Sadr and Crescent Nebula
Powered byPixInsight

Sadr and Crescent Nebula

Equipment

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Acquisition details

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Description

First time fully automated imaging, I just set up and connect everything, create my sequence in NINA and go to sleep. Not really happy with my framing, but overall, it looks pretty good for only 2.5 hours of integration.

Equipment

Camera: Zwo Asi1600 MMC (-15C, Offset: 21) with Zwo filterwheel and filters

Scope: Samyang 135mm [email protected] with Deep Sky Dad LAF

Mount: Skywatcher Neq 6 with EQMod

Data

Lights:

Ha: 6*10min gain 139

O3: 9*10min gain 139

Darks: 20

Stacked in DSS

StarAlignment

DynamicCrop

Jon Rista Noise Reduction

MaskedStretch

ArcsinStretch

StarNet

CloneStamp and PixelMath to reduce artifacts: my current method is to clonestamp nebula parts in the Stars only image and afterwards subtract it from the original

PixelMath Dreamsplease formula

LRGB (for starless .6*ha+.4*oiii with little sharpening, stars ha as L)

ColourSaturation on stars

Final stretches

PixelMath to combine stars and starless

Comments

Sky plot

Sky plot

Histogram

Sadr and Crescent Nebula, Usernamealreadytaken