When sunlight meets oriented plate crystals, the same crystals that form sundogs a circumzenithal arc is formed. The refraction of rays nearly parallel rays through faces inclined at 90° produces very pure and well separated prismatic colours. The colours of the circumzenithal arc are purer than those of the rainbow.
marvelous thanks !!!
you will love the obolix !!!
look for it on youtube
dombadil 1 year ago
The CZA and CHA are the prettiest halos, I think.
1959Edsel 2 years ago
Great!
Canapin 2 years ago