Basically you have a total image integration time of 1 hour, made up of 2 second exposures, (you need to forget the 1 minute part as it has no bearing) which is just not enough at all, now if you were taking 3 minute exposures, and take say 3 hours worth, then you will get a much better image, or even 1 minute exposures for 2 hours will give a better image…, but 2 seconds ain’t gonna cut it I’m afraid…☹️
Just because you are stacking 1 minutes worth of 2 second exposures and then stacking all the 60 x 1 minute stacked images together, it still only means you have 1 hour of 2 second exposures….I’m not sure how else I can explain…