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Diamond Ring and Shadow Bands
http://antwrp.gsfc.nasa.gov/apod/ap100724.html

Explanation:
As the total phase of July 11's solar eclipse came to an end, sunlight 
streaming past the edge of the Moon's silhouette created the fleeting 
appearance of a glistening diamond ring in the sky. Seen through a thin 
cloud layer from the French Polynesian atoll of Hao it also produced 
remarkable shadow bands, flickering across the dramatic scene. Projected 
onto the cloud layer, the shadow bands are parallel to the sliver of 
sunlight emerging from behind the Moon's edge. Caused by turbulence in 
Earth's atmosphere refracting the sliver of sunlight, the narrow bands 
were captured in this brief, 1/400th second exposure. Shining through 
the cloud droplets, the sunlight also produced a luminous atmospheric 
corona, not to be confused with the solar corona seen during eclipse 
totality. The atmospheric corona is centered on the bright diamond of 
emerging sunlight.


When Diamonds Aren't Forever
http://antwrp.gsfc.nasa.gov/apod/ap060330.html


The Crown of the Sun
http://antwrp.gsfc.nasa.gov/apod/ap100721.html


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