Astrophotographers hangout. Invite friends and notice chat bar on bottom.
I re-shot the H-Alpha for this, 5 hours unbinned (15x20 min. subframes). OIII is left as in the old picture - 200 min unbbined. The green channel is synthetic per S. Cannistra technique. All was shot through Celestron NS11XLT in Hyperstar configuration at F/2.