You've gotta be happy with that for an unatended image run, very nice
I am too chicken to leave my NJP and AP alone while I sleep..I must be paranoid? I do go inside and surf the net but I have to check on things every 20min or so, even if just to check my subs for any errors that might mean I have to take another in its place..?....
Seriously though without an accurately trained temp compensating focuser I get focus shift and I like to refocus every 30min, I think this ensures the highest quality focus throughout an imaging run.
The other night I must say I did 5 hrs of imaging on one object and the average dy/dx guide errors were around 0.15pix or +/- 0.3" the whole time!!...still checked on it and refocused every 30min or so though
Mike