Bertram Radelow was the observer of this halo display on 14 December 2009. The temperature was -15 degrees that morning in Davos, Switzerland, and the crystals originated from the nearby snowguns. Further images of the display are available on Bertram's site (
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A beautiful and atmospheric (excuse the pun) image!
ReplyDeleteIt's a pretty good 46 halo here. In lamp light blue circle etc would have been possible.
ReplyDeleteYep, 46 deg sunlight halos like that are hard to come by.
ReplyDelete