Distinct_halos_and_sunspin_offer_incredible_views_during_clear_afternoons
The Role of Ice Crystal Shape and Orientation
The shape and orientation of ice crystals are paramount in the creation of a sunspin. While a variety of ice crystal types can contribute to atmospheric optics, plate-like crystals are most frequently associated with sunspin formation. These flat, hexagonal crystals, when falling through the atmosphere, naturally tend to align horizontally due to their shape and aerodynamic properties. This alignment is facilitated by gentle air currents and the crystals’ tendency to minimize air resistance.
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