Here's a Ha/OIII bi-colour of this bipolar emission nebula in Norma. The outer shell, mostly OIII, is very dim hence the long integration times (50 x 1800 sec Ha, 100 x 1800 sec OIII).
The scope used was a Ceravolo 300 at f/9 and the camera was an Apogee U16M.
High res version on Astrobin:
http://www.astrobin.com/112567/The amount of data probably justifies another attempt to see if I can improve on the processing in future!
Cheers,
Rick.
