Hi
I have a current observation with 16 inch
Seeing was excellent, Fst 6m5,
NGC 6572neg.jpg
v = 1040 without filter

I could zoom with a 2x Barlow to 1040x and I saw an oval, elongated object with a bright central region and indicated light "shells" in the southern and northern area.

CS Hajü
www.astromerk.de