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> Thanks for the additional notes differentiating the "opposition
> effect" from "heiligenschein", which I thought were the same.
> Do I presume from your description that the fact that when the fogbow
> is visible so is the glory, meaning the water droplets involved have
> a fair range in sizes? (I have nice photos showing a fogbow with a
> brightly colored corona
^^^^^^
Anti-corona - not corona! :-)
> around the shadow of my head.)
This ought to be the case. When I've seen fogbows on clouds from an
airplane, I've not seen a glory in the middle.
The most recent fogbow I saw was, BTW, from the ground and not from
sunlight! I was standing by a road in the dark, waiting for a bus.
This was out in the country. It was a dark november evening with a
lot of mist. Cars passed by, with dazzling lights -- when I looked
away from the cars I saw a fogbow, caused by the lights from the cars
passing by! Only a fogbow, no anti-corona around the shadow of my
head.
Paul Schlyter, Swedish Amateur Astronomer's Society (SAAF)
Grev Turegatan 40, S-114 38 Stockholm, SWEDEN
e-mail: pausch_at_saaf.se psr_at_net.ausys.se paul_at_inorbit.com
WWW: http://www.raditex.se/~pausch/ http://spitfire.ausys.se/psr/
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