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Richard Walker

Red Rainbow

Visible to anyone in the world

A couple of days ago I glimpsed my first red rainbow.

If the setting sun creates a rainbow, it's likely that the sun's rays will be red, because the blue part of the spectrum will have been scattered by the atmosphere. So we see a red rainbow. It's quite rare because there has to be rain falling in the eastern sky more or less at the moment of sunset in the west.

It was only little bit of the full rainbow but in my photo, taken looking east, you can get an idea of this rare and beautiful sight.


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