Deer Lick Group and Stefan's Quintet (Timothy Martin)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: NGC 7315 · NGC 7317 · NGC 7318 · NGC 7319 · NGC 7320 · NGC 7331 · NGC 7333 · NGC 7335 · NGC 7336 · NGC 7337 · NGC 7338 · NGC 7340 · NGC 7343 · Stephan's Quintet

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Deer Lick Group and Stefan's Quintet

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Deer Lick Group and Stefan's Quintet

This is from data I captured almost three years ago on a dark sky trip to Big Bend. It was captured with a ZenithStar 61 that was piggy-backed on my C11. When I initially processed it, it was just terrible. There were big blue diffraction spikes on the stars and blue streaks all through the data. I could never figure out what was causing that, so I abandoned this data. I ran across it again yesterday and decided to do a deeper look with the benefit of three years of experience in this avocation.

Turns out that the issue was with the flats I took at the time. When I processed it without the flats, it looked pretty clean. So I processed it as best I could and this is the result. It's the only image of Stefan's Quintet that I have, so I was very pleased that it came out as well as it did in the wake of the JWST making that object more well known.

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Status	Advanced success
Started	...
Astrometry.net job	7542378
PixInsight job	L8YIBNHUSAGMSG9GMD8QTQ3PVJT73JO4
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h37m04s.68
RA (top/left)	22h39m12s.91
RA (top/right)	22h38m56s.45
RA (bottom/right)	22h34m54s.79
RA (bottom/left)	22h35m14s.73

Dec (center)	+34°24′40″.6
Dec (top/left)	+33°50′10″.7
Dec (top/right)	+35°01′33″.9
Dec (bottom/right)	+34°58′56″.8
Dec (bottom/left)	+33°47′34″.1

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Deer Lick Group and Stefan's Quintet

Deer Lick Group and Stefan's Quintet

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Deer Lick Group and Stefan's Quintet

Deer Lick Group and Stefan's Quintet

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