NGC7331/Stephans Quintet - Example of a Challenging Night! (mikefulb)

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 · Stephan's Quintet

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NGC7331/Stephans Quintet - Example of a Challenging Night!

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NGC7331/Stephans Quintet - Example of a Challenging Night!

This image was taken on 10/19/2017 at the Staunton River Star Party. Sky looked clear but as night went on I found it very difficult to understand guiding RMS (growing) and HFR of stars (also growing). I was able to look at a Satellite IR loop and noticed a thin area of moisture/clouds was moving over us very quickly. Conferring with visual obervers nearby confirmed my observations that seeing had gone out the window! At the start of the night I was getting an HFR of around 1.3 for my stars and by 11pm it had grown to 3.0! Pretty huge change quickly.

Since guiding was continuing to work and the background level hadn't jumped up too much I decided to let Ekos plug through my LRGB sequence and see how it turned out.

The resulting data was very soft and lacking the usual punch of contrast I like, but I think it was salvageable and I thought it was interesting even on a night that falls apart you can still have fun imaging.

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Status	Advanced success
Started	...
Astrometry.net job	1781135
PixInsight job	VY8GVVFZBN7THF9WBUBI80A8HGIWPEC7
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h36m43s.16
RA (top/left)	22h38m33s.21
RA (top/right)	22h38m30s.32
RA (bottom/right)	22h34m51s.40
RA (bottom/left)	22h34m57s.29

Dec (center)	+34°14′59″.2
Dec (top/left)	+33°40′48″.9
Dec (top/right)	+34°49′39″.7
Dec (bottom/right)	+34°49′02″.6
Dec (bottom/left)	+33°40′11″.8

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NGC7331/Stephans Quintet - Example of a Challenging Night!

NGC7331/Stephans Quintet - Example of a Challenging Night!

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NGC7331/Stephans Quintet - Example of a Challenging Night!

NGC7331/Stephans Quintet - Example of a Challenging Night!

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