Thanks chaps,
To save another thread, here's a badly processed set of images I took earlier. 12 each of 60, 30, 15, 5, 2.5 and 1 second at iso 800.
Thankfully the reduction is size lessens the effects of the lack of focus, the poor stacking and a multitude of other defects!
Still no flats, darks and processed as jpgs.
I had fun anyway