Aurora Borealis (just about!)

Two nights chasing the Northern Lights and this is the result. On the subtle side, I admit, but this is an un-retouched smartphone image. It followed a red alert from my AuroraWatch app, measuring a whopping 300 nanotesla (whatever that might mean!). I’m guessing the glowing cloud is the reflected light from Cromer, and not the landing lights of a UFO!