Odd radius halos on 8th May
The photos of this diplay got lost somehow and then found again deep inside my harddrive. The display shows 9, 18, 20, 22 and 24 degree halos, also 9, 20 and 24 column arcs. This photo is 9 image stack…
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Blue spot from Vecsés, Hungary
The image above shows the blue spot on the parhelic circle, photographed on 1 September in Vecsés, Hungary. Click the picture to see the colours in the original version. Its hue seemed almost electric blue compared to the white parhelic…
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Odd radius halos in Nydek
After a year of non-pyramidal halo complexes, finally a pyramidal one appeared. On 10 September, I (Martin Popek) observed 9°, 18°, 20°, 23° and maybe a 24° halo, together with weak 9°, both 18° and 23° parhelion, which was separated…
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Halo Meeting 2009, Hungary
*** addition 7 December: please note that the date of the meeting has been modified! *** After the 2006 Artjärvi halo meeting ( 1 ), the next one is to be organised in Hungary. The date of the event is…
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High-sun parry arc in Ohio USA 8-22-08
For the first time since April 10th I have gotten some photoworthy halos. In all I got 22° halo complete circumscribed halo, complete parhelic circle, circumhorizontal arc, and my first high-sun parry ( 1 – 2 ). I saw reports…
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Report of the Czech ‘Halo Observe Project’ (HOP) about the past three months
Photographs above by Patrik Trncak and Martin Popek. 16th June 2008 – 120° parhelion Tomas Trzicky observed a 120° parhelion during a flight over the Czech Republic. It was seen only briefly somewhere over the western part of the country…
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Two high-sun Parry arcs
We tend to think of upper Parry arcs the way we see them at low sun. Two observations from the past months, however, show what they look like when the sun is high up in the sky. In the above…
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The origin of pyramidal halos in the centre of Europe
The odd radius halos to the right and in the images attached ( 1 – 2 ) were photographed by Marco Candotti on 25 July in Palmanova, Italy. The display started at 9:00 UT and was at its best between…
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Halo bibliography
Rainer Schmidt from Rostock, Germany has compiled a halo bibliography. It contains more than 2600 titles and is available at the following link: ( 1 ).
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Column arcs and parhelic circles over Finland
During the past few days there have been two displays with full parhelic circle over Finland. The first one occured in Kitee, East Finland shortly after 10:30 on 9 July. 11-year-old Jesper Rissanen took a video of this display (…
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