M101-HaLRGB

[Rodd]

This is just about as good as I can do in my sky.  Seeing was consistent across all channels and it was as dark as it gets at my house.  Calibration worked well, and there is copious data. Still, at 27.5 hours, the faint extensions are barely noticeable. A corollary to this is the background is too dark, which is hard for me to avoid.  The strange thing is the background looks overly bright during processing.  Only the brightness values belie its apparent haziness.  They are too low, but to my eye the background is very bright.  That is typical for me.  Otherwise, I am pleased with the galaxy itself..  Definitely my best M101.  Only time will tell if reprocessing will improve the image.

C11Edge with .7x reducer and ASI 1600 Red 170 120 sec; Green 116 120 sec; Blue 123 120 sec; Lum 400 60 sec, Ha 90 300 sec.  Bin 2.  I used a super-luminance  of all RGB and Lum subs

 

 

 

Edited May 13, 2023 by Rodd

[Sunshine]

A beautiful image!

[Rodd]

11 minutes ago, Sunshine said:

A beautiful image!

Thanks, Sunshine

[Rodd]

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Edited May 14, 2023 by Rodd