[marco (Marco Lorenzi)]

Originally Posted by iceman

Beautiful work Marco, always a pleasure to view them.

Thanks Mike, happy you liked it!

Originally Posted by Larryp

Lovely image, Marco

Lanks Larry!

Originally Posted by atalas

Marco,what a wonderful job you've done on this glob!I find It shows the excitement I feel at the eyepiece at a dark site!only better.

Thanks Louie, I have also printed in my mind the incredible visual feast this globular is, happy got the the feeling on silicon

Originally Posted by Andy01

Wow! That's a cracker, stunning detail

Thanks Andy!

Originally Posted by alpal

Wow - that's one of the best Tuc 47s that I've seen.

Thanks Alpal

Originally Posted by strongmanmike

Yeh wow looks great Marco, lovely handling of the stars in this very difficult to process object nearly 7hrs of Luminance huh? amazing!

Something looks a little strange though, there is a distinct glow in the background between the glob stars in a distinct circle shape but this glow seems to abruptly finish and then the outer area of the image has a dark sky between the stars Do you understand what I am saying? While this makes the glob look bigger, is it real?

Mike

Hi Mike, well, mmm I don't get you this time mate. I cannot see any glow, halo or whatever you are talking about. There is still some chroma to be removed on the background that is not in the center (with much higher s/n) that *may* give a strange perception (I didn't remove the chroma noise from the background), apart from that, cannot see any "distinct circle shape" that "abruptly finish"..
I believe what you refer to is indeed the chroma noise of background that is "covered" by the higher brightness and s/n of the globular cluster..
Can you elaborate a bit better?

Clear skies