Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
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M51, mean FWHM 3.38, OSC, wsg
M51, mean FWHM 3.38, OSC
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M51, mean FWHM 3.38, OSC

Getting plate-solving status, please wait...
M51, mean FWHM 3.38, OSC, wsg
M51, mean FWHM 3.38, OSC
Powered byPixInsight

M51, mean FWHM 3.38, OSC

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Description

I have been re imaging M52 every clear minute since April 26 while waiting for later targets and especially after posting M51 2022 with a median FWHM of 4.45. The new goal was to capture all new subs  and specifically increase integration time and quality by keeping only the best frames using FWHM in PI.

  This new M51 represents all those new files and all are under 3.90 FWHM which is "OK" seeing according to Astronomy Tools but unfortunately, just a handful are in the "Good" seeing range of 1-2.  The integration time has increased by 2 hours over the older try and the new image has a mean FWHM of 3.38.  I suppose this is my real M51 2022.

   I can easily see the difference in quality in the core detail and color but it took over a month to get 7-8 hours of new data.

   I am officially done with M51 until 2024.  Lol!  

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M51, mean FWHM 3.38, OSC, wsg