Stephan's Quintet and Deer Lick Group in LHaRGB (David Payne)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: NGC 7317 · NGC 7318 · NGC 7319 · NGC 7320 · NGC 7331 · NGC 7333 · NGC 7335 · NGC 7336 · NGC 7337 · NGC 7338 · NGC 7340 · PGC 141035 · PGC 141039 · PGC 141041 · PGC 2051985 · PGC 69260 · PGC 69279 · PGC 69281 · PGC 69291 · Stephan's Quintet

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Stephan's Quintet and Deer Lick Group in LHaRGB

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Stephan's Quintet and Deer Lick Group in LHaRGB

Deer Lick Group and Stephan's Quintet - July 2022
Planewave CDK12.5 - AIS6200MM
A-P 1100 GTO AE, Antlia Pro LRGB and 3nm Ha filters
L (56 x 120s exposures, Bin 2, Gain 100)
R,G,B: (3 x 28 x 150s exposures, Bin 2, Gain 100)
Ha: (21 x 600s exposures, Bin 2, Gain 200)
Total Integration Time = 8.9 hours
I was inspired to take Stephan's Quintet by the JWST version. Besides, I wanted to switch over to my reflector telescope and wanted a break from shooting clouds.
Stephan's Quintet (lower right) is expecially interesting - four of which are in close proximity (290 MMly) while the fifth (lowest in image) is much closer (only 40MMly). Interestingly, only the closest galaxy registered a signal with the Ha filter (red) and I am left wonder if the hydrogen rich star forming areas are too small in the more distant galaxies or if the red shift associated with the more distant galaxies takes it out of the narrowband capture range. I can check the latter by doing a little math.
The Deer Lick group of galaxies (left) is dominated by NGC7331 spiral galaxy in the foreground and many "smaller", more distant galaxies also known as the "fleas". MGC7331, seems to have quite an number of hydrogren rich, star forming areas.

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Status	Advanced success
Started	...
Astrometry.net job	6051840
PixInsight job	N37I14JVKPE1ZRD1P0J9YRJPQRS1ZOV5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h36m27s.511
RA (top/left)	22h36m44s.426
RA (top/right)	22h34m10s.567
RA (bottom/right)	22h36m10s.842
RA (bottom/left)	22h38m44s.960

Dec (center)	+34°13′46″.25
Dec (top/left)	+34°43′00″.94
Dec (top/right)	+34°05′41″.21
Dec (bottom/right)	+33°44′31″.21
Dec (bottom/left)	+34°21′41″.17

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Stephan's Quintet and Deer Lick Group in LHaRGB

Stephan's Quintet and Deer Lick Group in LHaRGB

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Stephan's Quintet and Deer Lick Group in LHaRGB

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