Sharpless objects and SNRs in Cygnus wide field

[gorann]

I just had a comment on my previous post that I should soon have covered all of Cygnus. Not so, much remain but I covered a part of it and just put together this mosaic. This is a two-panel Samyang 135 mosaic to which I have added about 50% RASA8 data to four of the more busy areas. There are quite a few supernova remnants in the image, some of which are rarely imaged (and unfortunately not annotated by Astrobin annotation attached). Most of the SNRs are revealed by their blue (Oiii) nebulosity, which I have here selectively stretched since they would otherwise be drowned in the Ha and starfield.

You can see close ups of some of the SNRs in my recent images here and on Astrobin, where I also give some info on the objects.

Totally about 40 hours at f/2, so quite deep.

Edited October 15, 2023 by gorann