Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5477
M 101 9x8-min L good seeing and focus, Jason Fields
M 101 9x8-min L good seeing and focus
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M 101 9x8-min L good seeing and focus

M 101 9x8-min L good seeing and focus, Jason Fields
M 101 9x8-min L good seeing and focus
Powered byPixInsight

M 101 9x8-min L good seeing and focus

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Description

Still tweaking autofocus and tracking and finally got some good seeing. I took 60 images last night, some are blurry due to seeing and/or tracking errors, but I've taken the nine best, which are remarkably better than the others, and coadded them. The core detail is pretty incredible, compared to the last two shots I've posted. I'm going to have to graduate from Nebulosity and start using Pixinsight. Many moons ago, I programmed and used IRAF, on a VAX even, so I know what I'm missing...

There are a tremendous number of background galaxies, particularly at bottom left and just below the nebulosity / satellite galaxy at right.

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M 101 9x8-min L good seeing and focus, Jason Fields