Last Thursday evening showed the most effective lunar halo shows that Marko Mikkilä had actually witnessed. Marko had created a particular 6-700 km round trip up north to be while in the vicinity of ski-slope snow devices due to the fact downwind of them could be identified diamond dust crystals of excellent optical good quality. It had been worthwhile
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The big image is dominated by a 22 diploma halo from randomly oriented crystals. At just more than two times the distance from the moon is actually a considerably much less typical sight
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Touching the internal 22° halo at top and bottom is actually a circumscribed halo from horizontal column crystals. Columns also produced the colourful infralateral arcs along with the paraselenic circle. That there aren't any moon canines (paraselenae) tells us there were couple of plate crystals.
The all-sky view (2) and the unsharp masked model (three) display far more column arcs
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Much more of Marko’s images used that night (see the set) present column arcs. Picture four has a splendid lower tangent arc created earlier in the evening. There's also traces of 'flared' pillars over man-made lights. Image five shows the flares evidently. They are spatial halos, the outcome of close by horizontal columns.
Finally (5) a blend of lunar halos and these from the higher intensity lamp
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see the set
Linear Mode
