IC 2944, the Running Chook nebula.
Shot in narrowband and I have used the Hubble space telescope palette to map the colours.
Taken over the nights of 25 and 26 January 2014, about 5 hours for the Ha, about 2 hours each for the OIII and SII.
I may be adding to this image over the next couple of days as my field of view doesn't cover the entire nebula.
Larger version
here
Cheers
Stuart