Sunday, October 28, 2007
Have you ever seen a rainbow cloud?
Taken in June of this year, this is what is known as a circumhorizontal arc ... "The arc isn't a rainbow in the traditional sense—it is caused by light passing through wispy, high-altitude cirrus clouds. The sight occurs only when the sun is very high in the sky (more than 58° above the horizon). What's more, the hexagonal ice crystals that make up cirrus clouds must be shaped like thick plates with their faces parallel to the ground.When light enters through a vertical side face of such an ice crystal and leaves from the bottom face, it refracts, or bends, in the same way that light passes through a prism. If a cirrus's crystals are aligned just right, the whole cloud lights up in a spectrum of colors."—Victoria Gilman
Amazing isn't it? I was picking up my son from school when I saw this and we literally ran home so I could get my camera and take pictures. This is a rare occurrence and we're so lucky we saw this.
amazing pic - what a sight!!! x
OMG thats beautiful z
awesome!!!! thanks for sharing! :)
wow, that's amazing =)
what beauiful colours in the sky it look just wonderful :~) xx
WOW how amazing! You are soooo lucky to have seen that, well done on getting such a great shot of it. x
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