Airglow and faint aurora borealis or northern lights (due to recent massive solar flares) seen over the Teton Range on July 17, 2012 at 12:55 AM, as clouds roll in. Twenty minutes later, the sky was almost completely obscured with cloud cover. This is looking over Jackson Lake. The light on the lake is from the Signal Mountain marina. The Grand Teton is on the far left. Mount Moran is in the center (directly west @ 270º). Above Moran is the yellow-orange star, Arcturus, and the bright one above that is Izar, both in the constellation Bootes (see notes). The brightest blue star at the very top (directly in line with Moran) is Alphekka, in the constellation Corona Borealis.
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Canon 5D Mark III • EF 24mm f1.4L II lens • 15 seconds @ f2.8 • ISO 8000 • Add'l NightScape tech stuff