Corona Above Veszprem, Hungary

July 16, 2007

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Provided and copyright by: Monika Gyebnar
Summary authors & editors: Monika Gyebnar

On an early April day in Veszprem, Hungary, iridescent clouds were visible throughout the morning. I took a walk to a small hillside looking to photograph spring flowers. However, my attention was captured by the breathtaking corona shown above in the arms of an old locust tree. Coronas are produced by diffraction of sunlight (or moonlight) by micrometer (µm) sized cloud droplets. It seems that this stunning corona was perhaps produced by 8-10 µm size droplets. Smaller droplets form larger coronal rings. See also the Earth Science Picture of the Day for June 20, 2007. Photo taken on April 9, 2007.

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