This is just a 20min. luminance shot from Portland Downtown.
SUBS: 8 X 150 sec
Very little processing, just stack for darks, bias & flats. I had a huge moon below Garratt at the point of this shot, so I used GradientXTerminator to remove some of the moon brightness, although there is still some left. Still, I enjoyed the challenge of being able to do this object with a fairly amount light pollution and moon light.
The tracking was difficult due to the noise generated by the moon light and the fact that I learned that the 12V plug that goes into may mount was causing the mount to lose connection with the computer at some times...now it's fixed though but it affected the autoguiding too.