[AZ-Observing] Re: iridescent green mother of pearl sky
- From: Andrew Cooper <acooper@xxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Mon, 05 May 2003 19:51:54 -0700
Hi Bill,
We spoke with each other when you were looking at the event and I
mentioned a couple links that have much of the science behind these sort
of solar refraction effects. Here are the links, the first one has a
list of about thirty different effects, with photos and explanations of
the mechanism. Check out the entry under cloud iridescence under other
phenomenon.
Andrew
http://www.meteoros.de/indexe.htm
http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/opt/ice/halo/22.rxml
afls@xxxxxxx wrote:
>
> I would like an explanation please of the following.
>
> Saturday, May 2 at Kartchner Caverns State Park, was the middle of the four
> day Astrofest with speakers and nightly star parties. Towards sunset the sun
> was shining through high cirrus clouds. A large section of the clouds
> southeast of the sun became incredibly brilliant mother of pearl blue and
> rich aqua green. This area was NOT 22* south of the sun and absolutely NOT
> sundogs, nor were they in line to be sun pillars. In fact the phenomenon was
> not at all symmetrical. What is this?
>
> Bill Peters
> afls@xxxxxxx
>
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--
Andrew Cooper
Tucson, AZ
mailto:acooper@xxxxxxxxx
http://www.whitethornhouse.com
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