Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  37 Cyg)  ·  NGC 6910  ·  The star Sadr (γ Cyg
Sadr region  -  HOO, Thomas
Sadr region  -  HOO
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Sadr region - HOO

Sadr region  -  HOO, Thomas
Sadr region  -  HOO
Powered byPixInsight

Sadr region - HOO

Equipment

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Acquisition details

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Description

For Ha I reused my dataset and added the oxygen by using the "G" and "B" channel of some additional subs I took with Optolong L-enhance. Both images have been processed in a starless version. After channel combination and adding the stars the finetuning was done in Lightroom.
I found it most difficult to get rid of the star artefacts (Sadr in particular) for the "Optolong" images. There is a huge difference in star-size between the Optolong and the Astrodon filter.

Ha(Astrodon, 3nm): 44x480s, Gain 100
Optolong L-enhance: 17x300s, Gain 100
Total exposure:  7h, 17min

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Sadr region  -  HOO, Thomas