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.
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.
2007-01-02 18:09:40
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answer #1
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answered by Rae 2
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The halos around the moon means there will be inclement weather soon.Either snow or rain within 36-48 hours depending on the season.Also halos appear around the sun. Sun dogs are not halos. These are not related to brush fires. These halos that appear around the sun and moon are very old weather predictors and accurate more often than not.
2007-01-03 00:53:48
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answer #2
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answered by Miz Val 3
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Hey it's cool! It's a nice night here in Pennsylvania, and the halo is really easy to see.
Thanks for giving me a reason to get off my butt... been sitting in front of the computer too long... :+)
2007-01-02 23:19:51
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answer #3
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answered by Rapunzel XVIII 5
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Not tonight, but I have seen coronas a round the Moon often. I have also see, moonbows, nighttime rainbows. Very cool!
2007-01-02 23:20:20
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answer #4
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answered by Dawn G 6
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We don't have enough moisture here to get a moon halo, but I've seen them before - they're pretty cool.
http://antwrp.gsfc.nasa.gov/apod/ap000515.html for scientific information and pictures.
2007-01-02 23:09:10
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answer #5
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answered by Anonymous
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It is created by a thin layer of ice crystals between you and the Moon. (a cloud).
Your vision is probobly limited to your local area, although I think it is a pretty sight.
It reminds me of the two blondes looking at the moon. One blond asks the other "Which is closer? The Moon or Florida?"
The other blond replies "Duh! Can you see Florida?"
2007-01-02 23:09:04
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answer #6
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answered by damndirtyape212 5
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Its sunny here at the moment, and at night the halo is there because the bush is on fire... ( I literally mean there is a bush fire - not limited to one but many...)
2007-01-02 23:06:35
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answer #7
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answered by Abbasangel 5
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Funny room to point it out - I hope you're not gonna say its a miracle.
Its pretty and they're called Moon dogs, you should be able to see a sort of rainbow if its clear.
2007-01-02 23:12:38
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answer #8
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answered by TRITHEMIUS 3
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You've seen it too? I don't know what it is. He's serious, look at the window (unless it's still daytime where you are).
2007-01-02 23:06:04
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answer #9
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answered by Anonymous
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