Aurorae Borealis
Taken by Mark Urwiller on May 27, 2017 @
North of O'Neill Nebraska
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Camera Used: Canon Canon EOS 6D
Exposure Time: 20/1
Aperture: f/3.2
ISO: 1600
Date Taken: 2017:05:28 11:34:26
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Details:
Checked my e-mail about 8:30 PM last night and the Kp index was at 6 and the Interplanetary Magnetic Field was tilted south with indications the aurorae was visible at middle latitudes. I started driving around for a suitable foreground before dark.
This one wasn't bad - the Stone Windmill about 15 miles north of O'Neill at the intersection of 887 road and Highway 281. Sure enough the aurorae was in progress as the twilight deepened. I used a Canon 6D with 16-35mm f4 IS L on a tripod at ISO 3200 for 30 seconds. There was a west wind at about 20 mi/hr. which blurred the windmill but did not shake the tripod.
The show was nice until the clouds moved in from the north after midnight. There were a couple nice dynamic veils that moved like a dying florescent light tubes! I had to dodge the lights of cars on the highway, but it was a fun evening!
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