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Cygnus Smoke Ring?

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The left and right arcs, certainly, and maybe a link across the bottom. The top seems interrupted in the middle. It might be a coherent structure.



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Since I've recently been attacking this region again with narrowband imaging, I just played about with the processing to see what I can find. I got the above. This is boosted significantly more than normal of course, which is here if you want to compare. There does appear to be an "upper" dark lane which kinda completes a somewhat circular structure. Or maybe I'm seeing things as I've been looking at this for far too long...

Edit: looking at the individual channels, it is most obvious in Ha, less so in SII and not really there in OIII. I also noticed there's an arc of Ha between Pelican and Veil which is also visible in some of the other shots in this thread.

Edited by GlassWalker
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