Ice Crystal Halos

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Display from Achsheim

Display from Achsheim

On the morning of 25th January 2012, I observed a large halo display near Achsheim, a little village north of Augsburg/Bavaria/Germany (450m elevation). Beside this village, there’s a little river called Schmutter. It’s not a skiing region and there are…
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Helic and Tape arc in Cirrus

Helic and Tape arc in Cirrus

In the afternoon of October 14, I observed a large halo display in Bochum, Germany. It started at 14.25 CET (15.25 CEST) with circumzenithal and supralateral arc. During the following minutes, also the upper tangent arc, a bright Parry arc…
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Plate Arcs from Japan

Plate Arcs from Japan

These pyramidal crystal halos were observed by Anthelene over Sakaiminato city in West Japan. The most interesting features of this high cloud display are the 9°, 20°and 24° plate arcs. Marko Riikonen has made a simulation with HaloPoint2.0 ( 1…
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