[cybereye (Mario)]

My God, I can't believe I've managed to image and post something - it seems such a long time since I last did!

Anyway, here's my 2013 version of M20. I went with this neb so that I could compare both the RC8 and my skills compared to my two previous attempts using an 8" Newt. Imaging, as always, was done from my backyrd 12kms south of the Brisbane CBD using a QHY8L and guiding was done using an ST80 and PHD. The image consists of 33 x 5 minute subs stacked in DSS, processed in Startools and final cosmetics in GIMP.

Overall I'm happy except for the red fringe around some of the brighter, what should be yellow, stars. I'm not sure if this is an effect of my UHC-S filter or processing or both, so any advice would be greatly appreciated. I've also attached the 2012 and 2010 versions for comparison.

Mario