Auroral Arc

Auroral Arc

Aurora borealis in the early hours of Friday 23rd March 2012 - a green ribbon visible low across the horizon of the northern sky.

For those interested, I believe the auroral activity at the time was at approximately level 4 on the Kp index, and the photo was taken in Shetland which is on the 60th parallel north.

Posted: March 24th, 2012
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