I was wondering if anyone has experience doing live stacking over multiple sessions of the same DSO? If so, is image detail and color significantly improved with combining the frames from each session? Also, if your mount is turned off and even moved after each session, what special alignment considerations have to be taken into account. Additionally, if the camera settings are changed, maybe due to seeing conditions, how would that affect the combined stacking and merging of dark frames and flats.
The reason I'm inquiring is I've seen some incredible images from people doing extremely long exposures by combining 100s of short exposures taken over a number of nights with fairly basic EAA imaging trains.
Some examples can be found here: