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Author Topic: Moon Rings  (Read 1238 times)

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Offline Roie

  • Member
  • Posts: 263
Moon Rings
« on: February 09, 2009, 05:59:07 AM »
Last above the skies of Israel. 08/02/2009 at around 22:00 the moon had a ring around it. (I personally was in Jerusalem, where I took the photos) Its explained as follows


A Ring Around The Moon
The ring around the Moon is caused by the refraction of Moonlight (which of course is reflected sunlight) from ice crystals in the upper atmosphere. The shape of the ice crystals results in a focusing of the light into a ring. Since the ice crystals typically have the same shape, namely a hexagonal shape, the Moon ring is almost always the same size.

Less typical are the halos that may be produced by different angles in the crystals. They can create halos with an angle of 46 degrees.

Moon Ring Weather Folklore
Folklore has it that a ring around the moon signifies bad weather is coming, and in many cases this may be true. So how can rings around the moon be a predictor of weather to come? The ice crystals that cover the halo signify high altitude, thin cirrus clouds that normally precede a warm front by one or two days. Typically, a warm front will be associated with a low pressure system which is commonly referred to as a storm.
It is believed that the number of stars within a moon halo indicate the number days before bad weather will arrive.


http://home.hiwaay.net/~krcool/Astro/moon/moonring/



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Cruise on down the High Way

"When people who are not ready jump in, things can go horribly wrong. For most of us, there is always time to take a deep breath, consider one's options and make a careful, sound decision based on clinical fact, not emotion."
MtD

Offline weasel

  • Member
  • Posts: 1,710
Re: Moon Rings
« Reply #1 on: February 09, 2009, 10:49:42 PM »
great photos !

I enjoyed the lesson too ! :)
 
                                               Carl   
" Live and let Live "

Offline Robert

  • Member
  • Posts: 2,648
Re: Moon Rings
« Reply #2 on: February 10, 2009, 12:24:58 AM »


I'm with weasal.  Fascinating.  Great pictures and story.
..........

 


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