Willie and I got our first taste of the northern lights when we were in Iceland in March. Since then I've been eager to see more aurora and had hoped that we'd see a little during our time in Banff.
On this evening, a solar storm was predicted, that we hoped would cause the sky to glow green. NASA measures the solar radiation, which is what causes the aurora, and assigns it a number on a 1-9 scale. To see the aurora in Banff we needed something around a Kp 5 storm. Unfortunately, the storm that hit was only a Kp 4 and the only thing we saw was a *very faint* green glow on the very horizon.
Our first stop, though, while hunting for the aurora was Vermillion Lakes. Even though the sky only had a faint green tint, there was some beautiful light in the clouds and hitting Mrt Rundle, due to light pollution from the town of Banff.
Nikon D800 w/Nikkor 14-24mm f/2.8:
14mm, f/2.8, 30 sec, ISO 1600