Hi!
This image shows the nebula Sharpless 115. The field is centered in such a way as to allow the vision of the planetary nebula Abell 71 and classified as a mass classified as Berkeley 90. I tried to mix it with the alpha channel and the red luminance trying to have a good balance, I do not know if I have succeeded. I am always complicated to work with alpha h
Cheers,
Fabiomax
http://www.astrofabiomax.it/sh2115.html