Abfallprodukt: Sh2-91 in H(Jian G)O (Uwe Deutermann)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 12 phi Cyg · 9 Cyg · LBN 147 · Sh2-91 · The star 9Cyg · The star φCyg

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Abfallprodukt: Sh2-91 in H(Jian G)O

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Abfallprodukt: Sh2-91 in H(Jian G)O

"Abfallprodukt" = "waste product" or better "garbage collection" 😊. Had to mark it as such since there is waaaaaay not enough integration time collected to give this nebula justice (my estimation: >30 hours). Personally it is one of my favorite ones (funny enough), but maybe also one of the toughest ones of all to process.
The data were collected while I was working on my back focal distance (using the 0.72 reducer) and the focuser, and since my data pool is down to almost nothing I "needed" to work on this small amount, not expecting any reward whatsoever, maybe a desperation award LOLOL?
One part of this "adventure" was good though: it forced me to work much harder in the processing steps, looking around for better mechanisms, etc. Which ultimately will be beneficial in future processing, so it was not in vane.
I posted as final the image with higher background light, thought that it is looking better, usually I am NOT a fan of this. Version C shows the lowered version.
For the green channel I used Jian's assignment that he used in one of his recent images: G=((oiii*ha)^~(oiii*ha))*ha + ~((oiii*ha)^~(oiii*ha))*oiii (Fornaxx assignment?). I compared with the pure HOO and looked slightly different.
And ... and before I forget, do not look closer to this image, just enjoy it from a distance 😊.

Original
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Final
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C

Description: lower background version.

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D

Description: Annotated image.

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E

Description: Comparison to the previous attempt.

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Status	Advanced success
Started	...
Astrometry.net job	5185144
PixInsight job	BULXR7E1HVHJ0N8SU4Y8OBE5ZRLHKCSW
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h35m20s.12
RA (top/left)	19h29m52s.12
RA (top/right)	19h41m05s.68
RA (bottom/right)	19h40m53s.57
RA (bottom/left)	19h29m30s.61

Dec (center)	+29°36′23″.1
Dec (top/left)	+28°54′53″.6
Dec (top/right)	+29°01′59″.9
Dec (bottom/right)	+30°17′14″.4
Dec (bottom/left)	+30°09′59″.9

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Abfallprodukt: Sh2-91 in H(Jian G)O

Abfallprodukt: Sh2-91 in H(Jian G)O

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Abfallprodukt: Sh2-91 in H(Jian G)O

Abfallprodukt: Sh2-91 in H(Jian G)O

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