Hello All,
Sh2-73 has only been recognized relatively recently as part of the IFN and has been a rather difficult subject to film. In fact, I acquired frames for 3 consecutive springs, and only with the last few shots was the field deep enough to be processed.
It's an LRGB composition, you can find the bigger version and other info on my website:
http://www.skymonsters.net
Clear skies!
Nicola