Hello, Miguel and welcome back to Just Answer!My name is XXXXX XXXXX it will be my pleasure to answer your very interesting question tonight.The ring around the moon (called a halo) is the result of the refraction of the light of the moon, which is of course, reflected sunlight (as the moon gives off no light of it's own), from upper atmosphere ice crystals. These ice crystals typically have a hexagonal (six sided) shape which focuses the light into a ring.Interestingly, it is said that a ring around the moon is a prediction that bad weather is on its way, and this is usually true in many cases. This is possible, because the ice crystals that cover the halo indicate very high, thin cirrus clouds that normally appear about one or two days before a warm front. A warm front is typically associated with a low pressure system or storm. The belief is, that the number of stars present within a moon's halo will indicate the number of days before the bad weather will occur. You can see more details and beautiful pictures, here
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Hi again, Miguel and you're most welcome!It's my pleasure to be of help to you and yes, please request me in the future, for any questions, by beginning your post with my name, "For Cher" and I will be glad to assist you!Since you found my answer helpful, it would be appreciated if you could please take a moment to leave me positive feedback. If you do not see a ratings box or are having trouble rating, please reply back and I will have this taken care of for you. Thanks very much! Best regards,Cher