Aurorae from north side of Westmark (so lots of light pollution). Mosaic of three images of 30 second exposures each. The brightness level was greatly enhanced to show the aurorae (compare with the previous and following images). Aurorae had shifted some between first and last exposure. Image is 35% size of original.
Other aurorae pictures from this trip are in my Beautiful Earth album on the Aurorae page.
Image by Nick Strobel. Please ask for permission if you want to use this image in any sort of electronic or hardcopy publication.