Great Mike, extremely sharp.
I tried a framing of this almost exact same area last Friday:
http://www.iceinspace.com.au/forum/s...d.php?t=120363
But I did a stack of 25 sec subs at ISO 1600, with darks, flats etc. Result was nice, but not as clear as this one.
Would I have done better to do a single sub at a high ISO like you've done here? (my min f-stop is f/3.5 on my Sony NEX).