Taken just after midnight, 9/10 April 2015. Rannoch, Perthshire. 56.7N, looking pretty well due north. 25 sec exposure. Merged from two 28mm equiv frames (you can see the join) taken about a minute apart. The wider coloured glow wasn't visible to my (aged) naked eyes, but the centre spot was quite bright, and looked like slightly soft-edged searchlight beams, moving quite quickly.
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