NGC7023 - A Widefield of the Iris Nebula (Frank Rogin)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Iris Nebula · NGC 7023 · T Cep · VdB139

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NGC7023 - A Widefield of the Iris Nebula

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NGC7023 - A Widefield of the Iris Nebula

At the end of August 2020, I wanted to test the capabilities of my ASI camera on a rather difficult motif. For this I integrated 80 frames a 3 minutes. After stacking, my enthusiasm gave way to disillusionment. What I had in front of me was the most time-consuming post-processing so far. Finding the right balance between the fine nebula, the stars and the Iris Nebula itself turned out to be a real challenge. By now, I can no longer count the number of iterations on one hand. And I'm still not really satisfied! But nevertheless, I want to share with you my result.

So it will most likely not be the first and last version.

I hope you like my attempt anyway! I would greatly appreciate feedback.

Original
B
Final
C

B

Description: I took Mike's suggestion and created another version. I limited histogram stretching so that I could lower noise reduction which avoids an overly soft-painted impression. Moreover, the star colours are more emphasized and star sizes were reduced a little more. Summarized I like this version more than the original ones.

Uploaded: ...

C

Title: 2023 Reprocessing

Description: I reprocessed the data from 2020 using my latest postprocessing workflow.

Uploaded: ...

ZWO ASI 2600MC PRO

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Status	Advanced success
Started	...
Astrometry.net job	4710171
PixInsight job	BR75OKODAT1G42XWNB1UBE6MPMYZ6NWJ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h02m12s.52
RA (top/left)	21h15m02s.90
RA (top/right)	21h11m55s.74
RA (bottom/right)	20h47m40s.20
RA (bottom/left)	20h53m51s.100

Dec (center)	+68°07′17″.3
Dec (top/left)	+66°38′04″.3
Dec (top/right)	+69°50′51″.3
Dec (bottom/right)	+69°32′16″.4
Dec (bottom/left)	+66°21′53″.8

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NGC7023 - A Widefield of the Iris Nebula

NGC7023 - A Widefield of the Iris Nebula

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NGC7023 - A Widefield of the Iris Nebula

NGC7023 - A Widefield of the Iris Nebula

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Sky plot

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