On January 26, 2007, Claudio Martinez watched and photographed a complex diamond dust halo display at the Baqueira Ski Station in the Spanish Pyrenees. Baqueira is situated at an altitude of 1850m. At about 5.30 pm CET the display showed the 22°-halo with sundogs, anextremely bright upper tangent arc, upper and lower sun pillar and the parhelic circle. Part of these was also visible in front of a mountain ridge. In the upper sun pillar there also appeared the Moilanen arc. Nearby floating ice crystals are also visible as bright sparks in the pictures.
As far as I know, this is the first time that the Moilanen arc is observed in Pyrenees. It seems that a faint heliac arc is visble too on the pictures.
ReplyDeleteThe link for the video doesn't work, here is the right link: http://s74.photobucket.com/albums/i272/Pollastrina/?action=view¤t=MOV00660.flv
Yes there is a faint heliac arc in your display in the first photo I can see a faint upper sunvex parry arc inside the tangent arc
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