Nightscapes - Robert Arn
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Auroral Conjunction

On July 15th, 2012 there was a predicted conjunction where the Moon, Venus, Jupiter, and the bright star, Aldebaran appeared close to each other in the early morning sky. Two days prior to that, the sun released an X-Class flare directed at the Earth. When material from this flare interacted with Earth's atmosphere it produced a geomagnetic storm (Kp = 5) which was powerful enough to allow us in Northern Colorado to see the northern lights side-by-side against the planetary conjunction.

Location: Pawnee Grasslands, CR-61, Colorado
Date: 2012-07-15
Camera: Canon XSi (modified)
Lens: Canon 50mm f/1.4
Mount: Astrotrac
Shot: 13-panel Mosaic
13x8 seconds f/2.5 ISO 1600
Processing: Photoshop, Topaz