strongmanmike
06-03-2012, 11:47 PM
I decided to redo the data.... :driving:
Anyway, my RGB data was just 2min exposures so I went through them and picked out the best ones, I hadn't thought of doing this initially. The red particularly was taken higher in the sky and several of these subs were indeed sharper than the others but hardly a hint of the homunculus even with heavy DDP :sadeyes:. The Eureka moment was realising I had also taken a few 20 sec Ha framing subs before starting on the longer subs and I had actually saved them by mistake :eyepop: So after combining all 5 of them :rolleyes:, upsizing then ddp and sharpening I could see hints of the little man in what was the glare of Eta - what a stroke of luck:clap:.
I then went through all the the 5min Ha and OIII subs and removed the worst ones, recombining just the best ones produced a slight improvement too.
Because of the greater image density and given the reduced data, I worked mostly on the central 2/3 of the FOV and more heavily on keyhole vicinity.
No amount of careful processing replaces good seeing which I didn't have :rolleyes:... but doing all this has helped a bit and the biggest improvements were achieved in the bright areas, the actual Keyhole itself and of course hello Homunculus...he's hard to see but he's there :hi:
Central area at 100% res (http://www.pbase.com/strongmanmike2002/image/141738547/original)
Close up of the Keyhole and Eta Carina (http://www.pbase.com/strongmanmike2002/image/141823459/original) complete with faint homunculous:
All combined into the full frame image HERE (http://www.pbase.com/strongmanmike2002/image/141738539/original)
Until I get some good seeing, that might do for this set I think.....:question: :P
Mike
Anyway, my RGB data was just 2min exposures so I went through them and picked out the best ones, I hadn't thought of doing this initially. The red particularly was taken higher in the sky and several of these subs were indeed sharper than the others but hardly a hint of the homunculus even with heavy DDP :sadeyes:. The Eureka moment was realising I had also taken a few 20 sec Ha framing subs before starting on the longer subs and I had actually saved them by mistake :eyepop: So after combining all 5 of them :rolleyes:, upsizing then ddp and sharpening I could see hints of the little man in what was the glare of Eta - what a stroke of luck:clap:.
I then went through all the the 5min Ha and OIII subs and removed the worst ones, recombining just the best ones produced a slight improvement too.
Because of the greater image density and given the reduced data, I worked mostly on the central 2/3 of the FOV and more heavily on keyhole vicinity.
No amount of careful processing replaces good seeing which I didn't have :rolleyes:... but doing all this has helped a bit and the biggest improvements were achieved in the bright areas, the actual Keyhole itself and of course hello Homunculus...he's hard to see but he's there :hi:
Central area at 100% res (http://www.pbase.com/strongmanmike2002/image/141738547/original)
Close up of the Keyhole and Eta Carina (http://www.pbase.com/strongmanmike2002/image/141823459/original) complete with faint homunculous:
All combined into the full frame image HERE (http://www.pbase.com/strongmanmike2002/image/141738539/original)
Until I get some good seeing, that might do for this set I think.....:question: :P
Mike