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Saturn March 29, 2009

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#1 Sunspot

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Posted 30 March 2009 - 08:41 PM

Hi all,

I had some decent seeing on the evening of March 28 and got the following Saturn image. It was shot at about 350UT (March 29) with the 10" at F/32. I resized the image by 1.2x during Registax processing. The moon, Rhea, is seen at about 2 o'clock. A bright spot can be seen in the middle of the disk just under the shadow of the rings.

Paul

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#2 Freddy WILLEMS

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Posted 31 March 2009 - 12:47 PM

Nice big one Paul !
Colorfull banding.
Freddy

#3 Mert

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Posted 31 March 2009 - 12:55 PM

Now that's a really nice image Paul, lot's of detail
and very sharp.
I'd like to have half of the seeing you had, for me
that would be great seeing :crazy:
Yesterday night I tried with the 6" Mak @F36, but the
seeing was aprox. 0.1 / 7, very blurry result and the
blue channel straight into the waist bin :bawling:
Oh well, the next time ......

#4 Mike Phillips

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Posted 31 March 2009 - 11:02 PM

Well done! Did you change your processing routine at all?? Chris Go's recent challenge has me thinking differently. Or maybe just my eyes...

Great work,

Mike

#5 Sunspot

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Posted 01 April 2009 - 09:24 AM

Mike,

Thanks!! I don't think I adjusted my processing procedure on this image from normal, but I have made a major adjustment on my capture process. With the Skynyx and LuCam Recorder, I would typically set contrast at 1.2-1.4. While it gave better disk detail, it took away from the overall picture. Now I set contrast no higher than 1.05, normally leave it at 1.0. Now I get the crepe ring and better images of moons. Also, I went from 17fps to 10 fps so I can increase exposure time. This allows me to get about 50-60% on the brightness rather than the 30-40% before. Always something to try, huh? **grin**

Paul


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