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Sweden Summer Evening

By: P-M Heden

 

Region: Europe

Site: Vallentuna - Sweden

Date: July 2013

The Noctilucent or night-shining clouds (NLCs) appear in a summer evening of Sweden. NLCs lie near the edge of space, reflecting sunlight from about 80 kilometers above Earth's surface. They are usually spotted above the Polar Regions in summer. P-M Heden, Clearskies.se

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