Aurora Borealis

Quite a nice show last night (27 Sept) with aurora and a couple of meteors for good measure (note, the white line in the sky is an aircraft inbound to Helsinki-Vantaa airport.

This one has been enhanced a little (additional contrast, darkening the shadows) - exposure was 30s and ISO800, f/4 with Sigma 10-20mm lens (focal length was 10mm).

And an "unadulterated" which includes Ursa Major (just below center of the picture) - ISO1600, f/4, 31sec with Sigma 10-20mm at 10mm.

An here's and article about the sunspot and flare that generated all this:  http://www.nasa.gov/mission_pages/sunearth/news/News092511-ar1302.html