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On April 23/24, 2012 Earth experienced a G=3 geomagnetic storm. The Kp index, a measure of magnetic field, peaked at 6.33 out of a maximum of 9. The result of this disturbance created this Aurora event.
It was a beautiful spring night on the Alberta prairies. Temperatures were steady at 16 deg C with very light winds. As you can see there was some cloud cover, but I was able to get far enough away from it to still get a great view of the show.
Canon 5D Mark II
EF 24mm f1.4 ver 2
EF 15mm f2.8 Fisheye.
Exposure times between 3 - 15 seconds at ISO values ranging from 800-1600. All lenses were shot wide open.
InFocusImagery.com for more video and still aurora photography.
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