I still didn't get the primary cooled to ambient and am thinking I need to hook up the cooler to a timer that will turn it on at a preset time, so its cooled down by 5 a.m. just incase.
yeh that's what I do, just using a powerpoint timer.
Depending on how cold I think it's going to get, i'll leave my cooler running for 1-2 hours and have it switch off about 30 minutes before I plan to start imaging.
Nice job Lester,
The temp of your mirror sure does make a difference and no doubt would have made a difference to this image if you could have got it down to ambient before the capture.
Nice detail and I like the shadow of Io. This sure is a steep but immensly satisfying learning curve isnt it.
Thanks for your comments everyone, I appreciate it.
I have found a timer switch to go into the power point to turn on the mains power for my bilge pump to cool the primary. Just have to find a 12 volt dc supply that works off of the mains now. I had been running the pump off of a 12 volt battery that is hooked to a battery charger.
I have got jetstream till Friday now and strong winds tomorrow.