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Дата индексирования: Sun Apr 10 05:23:01 2016
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Поисковые слова: arp 220
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Submitted by Al Takeda on 06/23/2015 12:38:51

Aurora - June 23, 2015

Sunspot, Active Region AR2371, produced an M2 class flare and sent a coronal mass ejection toward the Earth on June 21st. On the evening of June 22rd, the Kp index fluctuated between 7-8 and produced an auroral display that was seen visually. Faint whitish "curtains" could be detected and occasionally, dim reddish areas would appear on the northern  horizon between the Big Dipper and Cassiopeia. A meteor trail, airplane and clouds are also in the image.


30-second image with dark slide, Samyang 14mm, f/2.8 lens imaged at f/5.6, Unmodified Canon T1i on a Tripod, No filter, ISO 800, processed with Adobe Photoshop. 00: 17 hrs EDT, 23 June 2015, Harvard, MA.



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