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Old 03-06-2007, 08:15 PM
grl570810 (Graham)
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grl570810 is offline
 
Join Date: Dec 2005
Location: Seaforth
Posts: 24
First attempt - Jupiter

OK guys, this is a big step for me so be kind! I've been a passive reader on these forums for months, but this is the first time I've dared to post. These two are my first attempt at imaging on Jupiter - the moons are Io and Ganymede. The equipment is a C11 on an EQ6 (no SkyScan), a ToUcam 740 unmodified with Baader UV/IR cut filter. First image is at native f/10, second at f/20 with a generic Japanese 2x Barlow. Captured using k3ccd, put through a basic Registax v4 processing since I have very little idea what I am doing there. Align / optimise / stack are pretty intuitive, but can anyone explain wavelets in words of one syllable or point at a decent online tutorial?

I'm OK with the first result, disappointed that second one is so 'soft' . Any ideas as to why would be appreciated, and indeed any comments whatsoever....

Thoughts (randomly) as to why the f/20 shot is poor. Is my Barlow rubbish? Have I got it focussed right (I have used a Hartmann mask, but only have the standard SCT focuser) - it was definitely much harder to 'pick the spot' at f/20 so I took a few sequences varying focus by about 1/20 turn each time from outside to inside - this is the 'best'? Am I just not processing it very well?

With the equipment I have I know I should do much better than this, so there's a big learning curve in front of me and any advice on the first few steps will be gratefully accepted...

Clear Skies
Graham
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