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Deerlick group, Stephan's Quintet and surrounding - wide and deep(ish), Linwood Ferguson
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Deerlick group, Stephan's Quintet and surrounding - wide and deep(ish)

Getting plate-solving status, please wait...
Deerlick group, Stephan's Quintet and surrounding - wide and deep(ish), Linwood Ferguson
Powered byPixInsight

Deerlick group, Stephan's Quintet and surrounding - wide and deep(ish)

Equipment

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Acquisition details

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Description

This is a is a wide field single-frame-width shot (not a mosaic) I took as something of an experiment, to see just how well my gear could fill a full frame camera and have decent corners, and how deep in the field I could see from my back yard lit by so many lights my eyes cannot see Polaris, about bortle 7.  The answer is mixed, I got more detail than expected, but I can tell some of the tidal tails in the interacting galaxies is just not there.

This is uncropped from the SVX152T (with flattener) so the extreme edges have some integration artifact, but I left them in so you can tell where the real frame edge is. It contains two frequently imaged groups - the Stephan's Quintet and the Deerlick group both, as well as quite a few other galaxies at random places around the background.  I left the drizzled image at full resolution as downsizing added some pixelation to some of these. 

This is 6 nights often with a lot of moonlight, in RGB, with a touch of Ha added in afterwards.  A synthetic luminance was used with the RGB's.  RGB had 34.5 hours total, with Ha at 5 hours.

Imaging was done over 6 nights, 7/22/2023, 7/24/2023, 8/6/2023, 8/22/2023, 8/25/2023 and 8/26/2023, and processed in Pixinsight.

I welcome criticism and suggestions.

Linwood

PS. Kudos to AP for a mount that tracks well enough the stars are round, and to Moonlite for the Nitecrawler that precisely nailed the rotation despite teardown and reassembly on each of 6 nights, and of course Stellarvue for building an OTA that can do nice corners all the way to the edge of a full frame.

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