Hungarian odd radii
These odd radius rings and arcs were photographed on 24 July 2010 by Róbert Rosenberg in Adony, Hungary. The photos were taken a few minutes after 14:35 CEST, and about two hours later. ( 1 )
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Moilanen arc without snowguns
I was recently filing images digitized from somewhat older slides and came across this upper tangent arc image from many years ago, in the early morning from here in Calgary. I decided to subject this image to some processing, in…
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Suggestion of observation: possible spurious arcs from Moilanen crystals
Here is an observation suggestion for next winter. Marko Mikkilä photographed possible new arcs during winter 2007-2008 ( 1 ). Source elevation was -1.5°. Different processing shows them as not only 22° arcs but also new helic arcs. Some twinned…
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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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Pyramidal halos in central Virginia
Elmar Schmidt was travelling southwards after the 10th Conference on Light and Color in Nature in Maryland. He observed this spectacular pyramidal halo display in central Virginia on 22 June. The display lasted for at least 2 1/2 hours and…
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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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New version of Streetlight Halos
A new version of Streetlight Halos is available ( 1 ). The project took on a life of its own, to the point where it is now a monster, more than anyone will want to read in totality. There are…
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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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Odd radius display from Kiev
Alexandr Shinder made the above panorama of the odd radius display he observed in Kiev, Ukraine on 31 March 2010. Further images can be viewed on his blog ( 1 ).
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Odd radius column arcs from Joensuu
Summer’s first hot weather spell started on 12 May in Finland, and along came solitary 23° plate arc. Yesterday it got warmer (+24°C) and also the halos got warmer. Odd radius column arcs! In addition to 9° and 24 column…
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