Another Saturn...

Hi all,

I found a video of Saturn from the night of the 31st, it was much higher in the sky but the seeing was not as good, but less wildly variable. Still I like this one better, it shows the Cassini much cleaner around the entire ring, and its less noisy, also I processed it to look not as greenish. Is it just me or is the trend to process Saturn with a greenish tinge? I know in my 30" Starmaster which will pick up subtle colour like crazy I never notice anything but a creamy yellow with maybe a hint of red on the globe. Guess thats down to personal preference.
Image: Stack of 550/2750, no enlargement
Starmaster 18" working at 11000mm fl (5X's powermate) Toucam 740. I tried what Tom Leech suggested which was to place the Reg 2 algnment curser on the globe not the rings which made for a more uniform sharpness--thanks Tom 8)
Another thing I've been noticing is in the larger aperture Sat pic cassini looks much wider than in the 8-9.25 scopes, why is this, just the slight edge in resolving power? Or did I oversharpen? I just used wavelets, no deconvolve, or unsharp mask..let me know you won't hurt my feelings we're here to learn from each other right? 8)

thanks

Mike Wirths

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Hi Mike,

Superb image as usual from you. I notice when I use wavelets if I try to push for too much detail in the "globe", then the Cassini division gets enlarged. I also believe wavelets 5 & 6 sharpen Cassini more than the lower numbers.
I also think wavelets is just a series of unsharp masks. Maybe some more knowledgable members will chime in as I'd also like to find out what they think.

Ed Roach

Nice image, Mike!
What capturing software are you using? Original that goes with the webcam or something else?

Yes! I like this one very much. Don't you just love those colors? I certainly do. Superb detail! Yahoo! Great job Mike.

Jim Phillips

Hi Mike,

Outstanding, excellent globe detail, I agree with your assessment of the visual colors I see the same in my 18" even at magnifications over 1000X , maybe it's just the large aperture,I know our Zambuto primaries are top notch .

Clear And Steady Skies,

Wes Higgins

Mike Wirths said:
. Is it just me or is the trend to process Saturn with a greenish tinge? I know in my 30" Starmaster which will pick up subtle colour like crazy I never notice anything but a creamy yellow with maybe a hint of red on the globe. Guess thats down to personal preference.

thanks

Mike Wirths

Mike,

First of all, congratulations on an excellent image - it is very hard to find fault in such an accomplished effort.

I am interested in your observation with your 30" telescope, especially your thoughts that the color is fairly uniform, a somewhat creamy yellow tinge. In my telescope, I observe the same thing. Further, the next chance you get, have a look at Titan. In my E-258, the disk has the color of a catcher's mit; the orangy tan color of heavily cured and tanned leather. let me know what you think. I include my perception of Saturn in CMY, and I'm curious as to how it compares to the view in your big 'scope. Just a caveat, I have a rep for very subdued processing in my images. I look forward to your thoughts on the matter.

Maurizio

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