mysterious glow that on the night of 16 June saw the residents of the Chelyabinsk region , is a known phenomenon scientists – noctilucent clouds, and it was observed not only in the Urals. The fact that observations of noctilucent clouds in the period from 2 to 4 am Moscow time on much of European Russia, “the Newspaper” reported by observers from several cities, such as St. Petersburg, Novgorod, Saratov, Chelyabinsk.
Noctilucent clouds are typically seen in summer in clear weather in twilight, at latitudes between 50 and 70 degrees, at a low altitude above the horizon. This cloud, which mainly consist of water and ice crystals are formed in the atmosphere at high altitudes – slightly less than one hundred kilometers.
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