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Tuesday, November 2, 2010

Look to the sundog!

Yesterday morning, Johannesburg was privy to a spectacular climatological phenomenon! The sundog, or parhelion! It's a corona (ring) that forms around the sun, creating a glowing, rainbow-halo type of effect. The result: A beautiful coloured ring that encircles the sun. The effect is apparently created by the presence of tiny ice crystals floating around in the upper atmosphere in the form of cirrus clouds. By the sounds of things, the light from the sun is bent at a 22 angle, resulting in the light halo. They are apparently best observed  when the sun is low, but we saw it fine with the sun almost directly overhead. There's more info available here on the ever-faithful, source of all true knowledge: wikipedia!

Here are some of the pics that I took yesterday. The dark bits are my building; I really should have been tending to the coffee machine at the time, but these climatological phenomena don't just happen everyday you know...!

1 comment:

  1. Oooooh, a giant eye (or boob?) in the sky! How special!