Thursday 11 July 2019

Pyramidal halos 7-10-19

Before leaving for work yesterday, I saw some cirrus clouds moving in and in a short time later 18 and 23d halos along 18d plate arcs, and bright upper 23d arc appeared. The display went on for a while and when the sun was high enough, a bright and well-defined lower 23d plate arc formed. The lower 23d plate arc in this display is my best to date.




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2 comments:

  1. Marko20 July 2019 at 08:55

    Must be the best lower 23 photographed.

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  2. Michael Ellestad29 July 2019 at 02:59

    Yep and if you want to use this on the Finnish optics blog feel free

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