Celestial hemisphere:  Northern  ·  Constellation: Pegasus (Peg)  ·  Contains:  NGC 7317  ·  NGC 7318  ·  NGC 7319  ·  NGC 7320  ·  NGC 7331  ·  NGC 7335  ·  NGC 7337  ·  Stephan's Quintet
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Deer Lick Group / Stephan's Quintet, Paul Krizak
Deer Lick Group / Stephan's Quintet
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Deer Lick Group / Stephan's Quintet

Getting plate-solving status, please wait...
Deer Lick Group / Stephan's Quintet, Paul Krizak
Deer Lick Group / Stephan's Quintet
Powered byPixInsight

Deer Lick Group / Stephan's Quintet

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Description

Had a good transparent night and was able to get nearly three hours of good data. However, even with lots of good data, the signal for the fringes of NGC7331, as well as the faint surrounding galaxies, was juuuuust above the noise floor. So even with a good set of flats, I was unable to stretch the image very far before I got really bad gradients. So I took the rather unorthodox approach of processing each group of galaxies within separate masks, which allowed me to stretch each section's histogram separately to draw out as much detail as possible.

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Sky plot

Sky plot

Histogram

Deer Lick Group / Stephan's Quintet, Paul Krizak