Japanese U
says,
“Wow!
Rainbow? Ummm…. What a weird-looking rainbow! What the heck is this? I’ve
never seen anything like this!”
Answer: This is a “Sundog (Mock sun) *. A sundog appears on the right side of
the sun above 3M HQ just before sunset. The real sun is behind the tree on the
left. You can sometimes spot a pair of colored spots on both sides of the sun.
Sundogs form when sunlight is refracted by ice crystals in cirrus clouds, which
are one of high clouds --- at or above 6000 m (20,000 feet). This pic was
shot on 060408, near 3M HQ, St. Paul, MN.
Japanese
Explore America
Info
photo js
17 sec. for a larger photo
* Sundogs <
http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/opt/ice/sd.rxml
>
posted: 060525, modified: 060601
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