Northern lights in St Andrews.
Me and a colleague were spending the night at the James Gregory Telescope looking for new exoplanets. At around 11 p.m. we saw a sudden spike in the background flux and went outside to discover that a faint aurora was visible. It was a first time for both of us and luckily I managed to take a few photos before it dissappeared again.
Date: February 27, 2014
Location: University of St Andrews Observatory, Scotland
Camera: Canon 6D
Lens: Canon EF 24-105mm f/4L IS USM (at 24mm)
Exposure: 5 seconds at ISO 2500
Processing: Processed in Photoshop CS6