|
|
|
Sundogs are seen on both sides of a solar halo, visible above the geodesic dome of the Amundsen-Scott South Pole station on January 5 2001. The halos are sunlight refracted by tiny ice crystals in the atmosphere. The halos always have a 22 degree radius, a function of the hexagonal shape of the ice crystals. The sundogs, also called parhelia, are always level with the sun. This particular display caused dozens of South Pole workers and scientists to stop in their tracks to appreciate the display on what was a balmy (-12 degrees F.) summer day. The photo was taken with a Nikon N90s, Fuji
100 film and a Nikon 16mm fisheye lens. |
