Quote:
Originally Posted by Lester
Nice image Trevor, showing a lot of interesting detail.
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Thanks Lester, still think I can get more from my data. I am relatively pleased with this image but still have a long way to go to get the the standard that you set earlier this apparition.
I have to be more precise with my temp control.
Quote:
Originally Posted by bird
Hey Trevor, that's a very good image, well done. Yes the temps can be very fiddly to get right...
cheers, Bird
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Thanks Bird, I have noticed each morning that I have imaged Jupiter that the temp has seemed quite stable, only dropping a degree or two just before dawn. With my cooling system set at minimum performance I had it fire up 1 hour before hand, this resulted in my mirror being about 2 degrees below ambient and was detrimental to image quality.
Then I tried starting the cooling system 30 mins beforehand which had my mirror 1. 4 degrees below ambient. One and a half hours latter my mirror was still .6 degrees below ambient and the images was starting to noticeable improve.
I think I will get up earlier and not use my timer to start the cooler, but run it as required to attain the sweet spot for my particular optical system, which seems to be between ambient and .5 of a degree above.