3498 x 5256 px | 29,6 x 44,5 cm | 11,7 x 17,5 inches | 300dpi
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Millions of ice crystals glint down from 3 to 5 mile high cirrostratus haze to form the 22º halo. The sharp inner edge is red tinged. Beyond, the halo fades gradually away.The sky Inside is dark because no crystals can glint there. 22º radius halos are visible all over the world and throughout the year. Look out for them whenever the sky is wisped or hazed with thin cirrus clouds. These clouds are cold and contain ice crystals in even the hottest climes. The halo is always the same diameter regardless of its position in the sky. Sometimes only parts of the complete circle are visible.
