Nacreous Clouds over Lapland

Sparkling and inspiring, wafting iridescent waves of color wash across this skyscape from Kilpisjärvi, Finland. Identified as nacreous clouds or mother-of-pearl clouds, they are uncommon. But their unforgettable look used to be captured wanting south at 69 levels north latitude at sundown on January 24. A fabricate of polar stratospheric cloud, they fabricate when strangely icy temperatures in the in overall cloudless decrease stratosphere fabricate ice crystals. Gentle sunlit at altitudes of around 15 to 25 kilometers, the clouds can diffract daylight hours even after sundown and appropriate sooner than the crack of morning time.