Jhaapa : Many of you have seen a halo around the sun in eastern nepal . It’s that perfect rainbow that forms a circle around the sun or even the moon. It’s formed as the sun’s or moon’s rays interact with ice crystals high in the atmosphere.
It’s the same physics, really. The halos (or, sometimes known as “sundogs” around the sun) are usually seen when there are high cirrus clouds overhead.
Those clouds are made of tiny ice crystals, which will refract the sunlight much like a prism will and voila! You have a rainbow halo around the sun.
It works the same way with moonlight, and it’susually a sign that rain is on the way, as high clouds usually precede a storm front.
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