Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888
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Crescent nebula - 2 narrowband filters OSC, Thomas
Crescent nebula - 2 narrowband filters OSC
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Crescent nebula - 2 narrowband filters OSC

Getting plate-solving status, please wait...
Crescent nebula - 2 narrowband filters OSC, Thomas
Crescent nebula - 2 narrowband filters OSC
Powered byPixInsight

Crescent nebula - 2 narrowband filters OSC

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Description

We had a wonderful week with near perfects skies. I used the opportunity to try this target with two narrowband filters (Astrodon 3nm Ha and Baader 4nm Oiii) and my OSC cam. A short session without filters for the stars.
It took most of the post-processiong efforts to bring out the faint Oiii regions and maintain appealing overall colors.

I am aware this process does not make use of the instrinsic OSC-benefits. It does instead waste sensor pixels during imaging. Still, I feel the results are better as you don't suffer a signal spill-over to the "wrong" channel. And narrower filters yield more constrasty and detailed images.
Images were taken September 6-9, 2023.

73x420s, Gain 100, Ha, 3nm
53x420s, Gain 100, Oiii, 4nm
46x120s, Gain 100
Total: 16h14m

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Crescent nebula - 2 narrowband filters OSC, Thomas