DAY OPTICS
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Crepuscular rays directly opposite the sun in late afternoon.

 

An unusually bright sundog with partial parhelic circle.

 

2-minute progression of a sundog in very fast-moving clouds.

 

Pretty shadows with a hint of tangent arc.

 

Upper pillar from behind a heavy cloud bank.

 

Intense November sun pillar, about 10 min. before sunset.

 

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