Thank you very much for your nice feedback! Mel, it's really nice to hear from you!
With my 12" f/5 Dobsonian at the given sky conditions I was only able to see the lower half of what appears to be shaped like a boot on long-exposure images.
I still have an old Celestron Comet Catcher 5.5" f/3.5 Schmid-Newtonian and I wonder if this telescope might be even better suited for this task due to its fast f-ratio?
After searching on the internet for a while, I found this website with a monochrome inverted infrared image of the UMa/UMi region: http://www.galaxyimages.com/UNP_IFNebula.html
At least in the infrared spectral region the nebula around Polaris seems to be even brighter, but it is very large. I wonder if small wide-field instruments are the best option for this. Mel, I found your sketch of this feature in your pdf file of sketches. How would you rate its surface brightness in comparison with the Volcano nebula?
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