Thread: Rainbows
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Old June 17th 06, 08:49 AM posted to uk.sci.weather
Les Les is offline
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First recorded activity by Weather-Banter: May 2005
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Default Rainbows

"Ron Button" wrote in message
...
This is amazing

I can't help but wonder whether there was a tertiary bow around the sun
when that photo was taken! 'Tis a shame that most people wouldn't think of
looking behind them for what is presumably a pretty rare effect...


The tertiary bow has never been reliably observed. See
http://www.sundog.clara.co.uk/rainbows/ord34.htm

It is around the sun in the opposite direction to the primary and
secondary. It is heavily masked by light that passes through
raindrops without an internal reflection.