halo
The ring of light that seems to encircle the sun or moon when veiled by cirrus clouds. To produce this phenomena, the ice crystals must be in a heterogeneous arrangement to refract the sunlight. The most commonly observed is a halo that forms at a 22° radius, although another one at 46° radius may also be seen.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Natural environment
- Category: General
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