Rare sky phenomenon
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18 سال پیش
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Atmospheric halos series part III.
Atmospheric halos series part III.
The white arc is called parhelic circle. The bright fuzzy dot to the right on it is a 120°-parhelion. If you look carefully you can see two more arcs crossing the parhelic circle to the left and forming an "X". These are very rare Wegener arcs. All these phenomena are caused by ice crystals in the atmosphere reflecting the sunlight.
The white arc is called parhelic circle. The bright fuzzy dot to the right on it is a 120°-parhelion. If you look carefully you can see two more arcs crossing the parhelic circle to the left and forming an "X". These are very rare Wegener arcs. All these phenomena are caused by ice crystals in the atmosphere reflecting the sunlight.
18 سال پیش
در تاریخ 1385/12/20 منتشر شده
است.
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