Iridescence Over Sugla Golu, Turkey
May 24, 2006
Provided by: Filipe Alves
Summary authors & editors: Filipe Alves
Just two hours after the wonderful total solar eclipse off March 29 (from Sugla Golu,Turkey), we were treated a display of colorful iridescent clouds. Though tame in comparison to the eclipse phenomena, they capped a most remarkable day of sky viewing. Irisation or iridescence is caused by diffraction of light by uniform cloud or ice crystals. Altocumulus, lenticular and cirrocumulus clouds typically produce iridescence when in proximity to the Sun.
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