And my last process with 11 x 240 sec skyglow filter + 21 x 120 sec skyglow filter + 21 x 240 sec UHC filter - 130 minutes (2 h 10 m) in DSS.
Despite of this photo has more 44 minutes, I don't see enhancement of quality in the final result. I can not tell what photo has the better and true shape of nebula. I only enhanced what I saw in the photo.
note: sorry, this more wide field is bigger than 200k. You can see it here:
http://astronomia-e-astrofotos.10697...604-130min.jpg