Rick Spencer

Of course, you are correct. I just got mixed up with the other 'scope.

Yesterday, I tested the camera (ZWO ASI290MC) in daylight, on a house chimney approx a quarter of a mile away. This is the furthest terrestrial target available to my location. It worked, and I could get focus with the focuser roughly half in/out. I tried with it for two hours last night on my 114mm aperture, F5 (update - my mistake, should be F8.77), 1000mm FL reflector and could not even find a single star!! I checked that there were stars visible, using a 40mm EP, although they were not centred. I tried random parts of the sky, around the Plough. I went through the full range of the focuser, using settings from 1 sec to 20 secs exposure, several Gain settings between 100 - 300, with and without a 2x barlow. I also tried with APT and Sharpcap 3.2, both produced a blank dark image (with a single dead pixel), obviously varying in intensity depending on the settings used at the time). Surely I should have seen something, even in a sparsely populated portion of sky? Any ideas what I did wrong, or failed to set?

You could try rolling back the windows updates? Also, there is a major build update approx every 6 months in windows 10, and smaller regular updates on a weekly basis. I'm assuming that you are on windows 10, and the following link should guide you through the process: https://www.howtogeek.com/235474/how-to-roll-back-builds-and-uninstall-updates-on-windows-10/

I can't find the Messier/Caldwell lists attached by Mark at Beaufort ?