[AZ-Observing] iridescent green mother of pearl sky

  • From: <afls@xxxxxxx>
  • To: az-observing@xxxxxxxxxxxxx
  • Date: Mon, 5 May 2003 13:29:41 -0400

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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