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This image of a Saturn showing Titan plus Titans shadow transit gave me a lot of satisfaction.
I had just finished designing and building a Peltier cooler for my primary mirror. A lot of effort went into the cooler. This particular night I had run the cooler for about an hour and taken my mirror temp about 1 degree C below ambient. I had shut down the system and was tracking Saturn. As the ambient slowly kept dropping and came to within 1/2 degree C of the mirror the image of Saturn which had been getting ever sharper, just seemed to snap sharp as. The image stayed really nice for about an hour until the ambient went lower than my mirror.
I had been researching this topic of active cooling for some time and had put a great deal of thought into how I could apply such a system to my particular setup. To achieve this sort of result really was extremely satisfying.
Some of the images I have taken of storms on Saturn in less than ideal conditions have also meant a lot to me. To be able to eek out storm structure with no regards to the esthetic's of the image but just for the scientific value of the data is a challenge I really enjoy.
Regards
Trevor
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