jsg Could someone please explain what is the function of the Center EXP time option?
If you enable auto center after a GOTO, that is the exposure time that the ASIAIR uses when it takes images for plate solving.
If a plate solve after a GOTO does not result in the target's position, ASIAIR will nudge the mount towards the target's position. The ASIAIR will rinse and repeat (each time taking exposures at said exposure duration) until the desired target is at the center of the photographic plate.
Chen