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A halo is caused by moisture in the air. The half circles are called "tangent arcs", and I had not heard of them (or seen a picture) before I read your question, so thanks! There are also things called moon dogs and sun dogs. These are bright spots to the side(s) of the moon or sun. They're called "dogs" because they travel with the moon, like faithful companions. [This message was edited by anguilla on 10-25-02 at 09:25 PM.] [This message was edited by anguilla on 10-25-02 at 09:26 PM.] |
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| Posts: 189 | Location: Los Angeles | Registered: 06-08-02 |  |
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