Noctilucent (mesospheric) clouds in Moscow. Photo taken on June 18, 2010 at 01:12 (Moscow time). Equipment: camera Canon 350d, lens Canon 50mm f/1.8, tripod. Regime: 3,2 с;   f/8;   ISO 400. Point: Moscow, 55.74N 37.73E.
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<span class="int-own-work" lang="en">Own work</span>