A red and green aurora lights the night on the Canadian prairie.

This was certainly a surprise aurora, with conditions officially registering as “quiet” early in the evening. However, checking Spaceweather.com showed the interplanetary magnetic field was tipped far south, a good sign.

So I made a point of checking after dark and sure enough, a fairly bright aurora was present all across the northern horizon. Conditions now registered “storm!”

The main image above is looking east, back over Saskatchewan. What was remarkable was the intense red curtains above the main green arc. These were invisible to the naked eye but the camera sure picked them up.

There was also an odd green band in the southern sky, above. Again, the green band was obvious to the naked eye, but the camera picked up an isolated red arc as well.

This is proving to be a quiet solar maximum, but the best displays often come on the downside of the cycle. So with luck we’ll be in for some good sky shows in the next couple of years.

– Alan, October 1, 2013  / © 2013 Alan Dyer