Sh2-24 In Ophiuchus is one of the closest yet faintest Molecular Clouds (HII Region) "The Gray Nebula" (Steve Argereow)

Sh2-24 In Ophiuchus is one of the closest yet faintest Molecular Clouds (HII Region) "The Gray Nebula"

Sh2-24 in Ophiuchus is one of the closest yet faintest Molecular Clouds (HII Region). it is estimated to be
about 500 light-years away and is roughly the apparent size of a full moon in the telescope.

I only found one other dedicated image of this on Astrobin. Despite imaging with a OSC over a 5 night period
with the Optolong L-Pro the first 3 nights I was getting no color. The nebula was gray. After about 7 hours
integration time I started to see a slight red. The last night I imaged was with the L-Extreme filter because
of a 30% Moon. Imaging with that it took a hour of integration time before I could even see the nebula.

I couldn't find much information on this.

Note: I'm calling this: "The Gray Nebula" Even after 18+ hours integration time there was almost no
color just a hint of red. Durning, processing I made a copy, did star removal and then over-saturated
the color. I then used gimp and layered that in with the original copy at about 50% each. That's
how I brought out the reddish hint. In total, I imaged this 9 nights from 6/1-6/25/2022.

Telescope: Meade 6000 80mm APO Refractor f/6.0 (480mm Focal Length)
Meade X0.8 Reducer f/4.8 (385mm Focal Length)
Mount IOptron CEM40
Camera ZWOASI6200MC-Pro Temp -10C, Binning 1 x 1, Gain 100 Offset 50
ZWO EFW

12 X 600 Second Exposures W/Optolong L-Extreme Filter (6nm)
30 X 300 Second Exposures W/Optolong L-Extreme Filter (6nm)
110 X 300 Second Exposures W/Optolong L-Pro Filter
54 X 180 Second Exposures W/Optolong L-Pro Filter
40 Dark Frames/100 Flat Frames
Total Integration Time: 18 Hours 2 Minutes
Acquisition with SharpCap
Stacked with Astro Pixel Processor
Stacked with Deep Sky Stacker
Guiding PHD2
Processed with Astra Image/GIMP
Photo taken from Seven Lakes, NC Bortle 4.5

Original
Final
B

B

Description: Added 7 hours integration time for a total of 18 hours 2 minutes. I wanted more
but the weather said no. I'm saving subs and add to it next year!

Uploaded: ...

ZWO ASI 2600MC PRO
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Status	Advanced success
Started	...
Astrometry.net job	5963989
PixInsight job	PID1TF27ULAGD4KT0J0DX1TWR7X67NZJ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h11m11s.31
RA (top/left)	16h07m53s.75
RA (top/right)	16h08m13s.30
RA (bottom/right)	16h14m29s.67
RA (bottom/left)	16h14m08s.57

Dec (center)	-07°09′10″.8
Dec (top/left)	-06°06′30″.3
Dec (top/right)	-08°15′18″.9
Dec (bottom/right)	-08°11′41″.6
Dec (bottom/left)	-06°02′54″.3

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