
Guiding us to Northstar, a rainbow like circle around our star.
Refraction and dispersion off ice particles high up in the air. SciAm used one of my photos to illustrate the “glory” which looks similar:
“The light energy beamed back by a glory originates mostly from wave tunneling, which is when light rays that missed a droplet can still transfer energy into it.”
Otherwise, the angle of refraction would be off by 14° from a perfect 180° reflection back to the observer. The author has been trying to explain the glory phenomenon since 1965!
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