Home |

2010 July 24

2010 July 24

Diamond Ring and Shadow Bands Stephen Schneider(UMass Astronomy Dept.)

As the total phase ofJuly 11′s solar eclipse came to an end,sunlight streaming past the edge of the Moon’s silhouettecreated the fleeting appearance of a glisteningdiamond ringin the sky.Seen through a thin cloud layerfrom the French Polynesianatoll of Hao it also produced remarkableshadow bands,flickering across the dramatic scene.Projected onto the cloud layer, the shadow bands are parallelto the sliver of sunlight emerging from behind the Moon’s edge.Caused by turbulence inEarth’s atmosphere refracting the sliver of sunlight,the narrow bands were capturedin this brief, 1/400th second exposure.Shining through the cloud droplets, the sunlight alsoproduced a luminous atmospheric corona, not to be confused withthe solar corona seen during eclipse totality.Theatmospheric corona is centered on the bright diamond ofemerging sunlight.

Sunday’s Childe

This post has been generated by Page2RSS

More: continued here

Leave a Reply