One thing I really like about this image is the detail within the nebula. Both show great dust lane detail and I think that is something a little bit out of the ordinary.
I think the colour is fine. This object is a very subtle looking image with even high saturation.
A bit more time I think would produce a cracking image.
Wow, thanks Steve, Rod, Simon, Alistair, Paul, and Mike. They are fantastic comments. Yes, a bit more data would be nice, but work, weather, and the skies all have to line up. Kind of like those astronomical events I hear so much about
