Distinct_halos_and_sunspin_offer_incredible_views_during_clear_afternoons
This refraction leads to the concentration of light along a specific axis, often appearing as a vertical pillar of light emanating from the sun. The subtle movements of the crystals, however, cause this pillar to appear to spin or shimmer, hence the name “sunspin.” The effect is particularly noticeable when the air is exceptionally still, and the crystals are falling slowly and uniformly. It’s important to note that not all ice crystals contribute to a sunspin; only those with the appropriate shape and alignment will create the effect.
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