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Pollen Corona

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Date:13.5.2008 Instrument:f=180mm, Nikon D3
Place:Schelklingen, Germany Observer:Till Credner

© Copyright by the observers

Not only water droplets might produce coronae around the sun, during spring also organic pollen do so. However, the coronae of pollen are smaller, elliptical, and often with pronounced patches. This is due to their quite large size and the alignment of the non spherical particles.

See also:
Coronae of water droplets
Les Cowley on Pollen Coronae
M.G.J. Minnaert: "Light and Color in the Outdoors", Springer-Verlag
R. Greenler: "Rainbows, Halos, and Glories", Cambridge University Press