NGC -7331, HCG 92, The Deerlick group and Stephan's Quintet (Mark L Mitchell)

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 · NGC 7343 · PGC 141035 · PGC 141039 · PGC 141041 · PGC 2045849 · PGC 69218 · PGC 69260 · PGC 69279 · PGC 69281 · PGC 69291 · PGC 69346 · PGC 69387 · Stephan's Quintet

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NGC -7331, HCG 92, The Deerlick group and Stephan's Quintet

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NGC -7331, HCG 92, The Deerlick group and Stephan's Quintet

About 9h of LRGB data. This is one of my favorite targets. It fits well in my field of view, is well-balanced artistically, and has many physical complexities.
NGC-7331 has some interesting asymmetrical features and HCG 92 or Arp 319 has extraordinary tidal tails and features of billions of years of violent interaction. It's also interesting that some of the galaxies aren't really grouped in space as we see them. And, lastly, I like the detail that I can find in some of the more distant galaxies even at this scale, e.g. NGC-7343.
My last image of this target is two years old. My mount has changed, but the optical train is the same. This image benefits slightly from about 4 more hours of luminance and from Russell Croman's NoiseXterminator.

The refractors!
Arp's Peculiar Galaxies

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Status	Advanced success
Started	...
Astrometry.net job	6447515
PixInsight job	4NUJUSOY8UCBG6D2EW9W69VSOFTN3HAB
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h36m35s.90
RA (top/left)	22h38m24s.61
RA (top/right)	22h34m10s.28
RA (bottom/right)	22h34m48s.20
RA (bottom/left)	22h39m00s.62

Dec (center)	+34°12′12″.4
Dec (top/left)	+34°37′30″.7
Dec (top/right)	+34°27′41″.7
Dec (bottom/right)	+33°46′48″.6
Dec (bottom/left)	+33°56′31″.6

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NGC -7331, HCG 92, The Deerlick group and Stephan's Quintet

NGC -7331, HCG 92, The Deerlick group and Stephan's Quintet

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Image Index:

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NGC -7331, HCG 92, The Deerlick group and Stephan's Quintet

NGC -7331, HCG 92, The Deerlick group and Stephan's Quintet

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