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Chris, Arne and Casey O'Hara pose in front of a completed IceTop tank. The tank blocks the sun so you can see a halo. A typical halo is formed at an angle of 22 degrees away from the sun (measured with your eyes at the vertex of the angle). Near the Amundsen-Scott South Pole Station, Antarctica.

Credit to read: Photo by Casey O'Hara (PolarTREC 2009/2010), Courtesy of ARCUS

Photographer: Casey O'Hara
Download: 
Image icon Download OHara_IMG_0045.JPG (2.5 MB)
Category: 
Year: 
2009
Program: 
PolarTREC
Region: 
Amundsen-Scott South Pole Station
Topic: 
File Information
Focal Length: 
10mm
File Size: 
2621961
Computed Mime: 
image/jpeg
Max Aperture: 
f/11.0
Height: 
2304
Width: 
3456
Make: 
Canon
Model: 
Canon EOS DIGITAL REBEL XT
Exposure Time: 
1/400s
ISO: 
200

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