auroras
Taken by Bob Conzemius on August 4, 2014 @
Grand Rapids, MN, USA
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Camera Used: Canon Canon EOS 5D Mark II
Exposure Time: 15/1
Aperture: f/2.8
ISO: 1600
Date Taken: 2014:08:04 01:29:11
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Details:
I was surprised by a little substorm tonight. You have to be pretty diligent this summer to see auroras. We've had a lot of forest fire smoke from Canada and the western U.S., but the smoke cleared up a bit today, and ACE and GOES data were looking encouraging, so I looked to the northern sky. All I saw at first was a very dim, diffuse aurora, but then to my surprise, a substorm occurred. The show was pretty quick, though, as Bz was not very far south, only around -5 nT. This was the best shot.
Photographer's website:
http://tornadobob.com/auroras/index.html
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