Halo in Austria
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Halo in Austria

by Saskia Keesstra, Wageningen University, Wageningen, The Netherlands

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Konstantinos Kourtidis 10 years, 4 months ago

This is a very nice photo! Beside the 22 degree halo, one can also observe two parhelia (sundogs - bright spots at the left and right), and an upper tangent arc plus Parry arc at the top!! All these are caused by ice crystals in the atmosphere.