Ice Crystal Halos

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Odd-radii again

Odd-radii again

Alan Clark sent the above image, which shows the same display that Elmar Schmidt saw from Virginia, and which can be read about in the previous post. Alan photographed the halo from Dulles Airport, about 120 km NE of Elmar’s…
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Odd radii from Italy

Odd radii from Italy

Marco Candotti sent these photos from Italy. The images were taken on 15 June. The 22 degree halo lasted about an hour, while the pyramidal crystal halos only a few minutes. For a short time, a 120 degree parhelion was…
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Tampere Ellipse

Tampere Ellipse

The elliptical halo display observed yesterday by Marko Riikonen and Jari Luomanen was formed – as usual – in Ac virga. Marko had been paying much attention to Ac virgas for some time, and could therefore observe the whole display…
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