As the aurora didn't want to play ball, I had to pass my time, so decided to do a star trail image.
This one's a composite of 27 images, totalling 13.5 minutes of exposure.
Canon EOS-5D Mark III, Canon EF 17-40mm f/4L USM
27 x 30s f/4.0 at 17.0mm iso3200
Larger version available
here.
Thanks for looking, and, any comments or critique., etc.
H