Posted by Gordon on Thursday, October 16, 2003 at 3:11PM :
In Reply to: Re: Power Wagon's under the rainbow posted by Arthur P. Bloom on Wednesday, October 15, 2003 at 4:38PM :
The second bow is a mirror image of the first, but normally has only half the brightness (as here)hence the colours are reversed.
The original has to be quite bright to even get a second, and I believe that there are 3rd and 4th that are even fainter. It's caused by you having the sun behind you and the prism effect.
Gordon
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