View Full Version here: : NGC5139 from the Astrofest
firstlight
01-09-2010, 01:11 AM
Wanted to shoot 47 Tuc but had trouble with the guide stars so I had to settle with the second best globular (arguably).
Omega Centauri - WO 110 ED Magrez @ f4.95, Modded 450D, 11 X 180 ISO 800 plus darks, no flats or bias. Deep Sky Stacker, processed with PS CS2.
ESO 220-008 - from a full size crop of the above image... same details. The galaxy is visible left and below the globular... couple of other galaxies as well.
Comments welcome.
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Tandum
01-09-2010, 03:12 AM
Tony,
I deconvolved your galaxy crop to get a better view of the shape.
Hope you don't mind. This is them side by side. The data is there :)
batema
01-09-2010, 06:57 AM
Great photos Tony. Robin, how does one deconvolve and what is the purpose if thats not too much trouble.
Mark
firstlight
01-09-2010, 07:29 AM
Yes oh Great One, what is the secret of Great Definition? :prey2:
I have great need to apply it to ALL of my images :D. I am interested in seeing what it does to the face on spiral in the lower left of this particular image.
Tandum
01-09-2010, 11:18 AM
Tony, I ran a deconvolve script for maxim that I got off Greg Bock at Astrofest. That was 12 iterations which is a lot and would probably put black rings around the stars in a full image.
batema, here's how wiki (http://en.wikipedia.org/wiki/Deconvolution)explains it. But the short answer is :
DavidTrap
01-09-2010, 04:22 PM
Tony - great job on not blowing out the core.
Robin - I'll have to talk to you about how to run that deconvolve script on Maxim. Are you planning to go to Peter's on the Friday 11th? I "might" be able to make it that night (but not Saturday)...
DT
firstlight
01-09-2010, 05:22 PM
I'm curious what deconvolution would reveal of NGC5156 full-scale cropped from the tif and jpged for here, Robin?
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Tandum
01-09-2010, 06:26 PM
Dave, I was hoping to go up Friday and do the Kilcoy Show on Saturday to see jjj's exhibit, but that's work dependant.
Tony, here's that one with 12 and 30 itterations. Even 12 is too many. Look at the star at 7 o'clock from the galaxy. It has a black core cos I pushed too hard. There's always a tradeoff :P
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