A strange spot appeared on the inner side of the right 22° Parhelion. Obviously, it was not any odd radius halo.
To me, the reason for this phenomenon is the diffraction and interference of light. The USM images seems to support this speculation.
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These rare images were taken by ZHANG Jin Rong from the Chinese sky enthusiasts' community (in BeiJing, on January 1, 2026, from local time 15:50 to 15:56).
Several years ago, when the "multiple CZA" was discovered, it was also considered extremely rare. But nowadays, at least dozens of people around the world have captured the "multiple CZA". Perhaps, in the near future, more diffracted 22° parhelia will be recorded. Now I'm already looking forward to the discovery of the diffracted CHA. Anyway, what a crazy New Year gift for 2026!
