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Old 19-12-2009, 05:22 AM   #1
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A light pillar is a visual phenomenon created by the reflection of light from ice crystals with near horizontal parallel planar surfaces. The light can come from the sun (usually at or low to the horizon) in which case the phenomenon is called a sun pillar or solar pillar. It can also come from the moon or from terrestrial sources such as streetlights.

-Pillars, or Halo, we call it. There are ice crystals that do not go in all directions, but pointing the same way and thus sends light reflectance same way, "said state meteorologist John Smits at the Meteorological Institute of

Light rays are created so that the light reflected by all possible street lights pointing in the same direction.

He lives in self Lørenskog - where the pictures were taken Friday night - and so the phenomenon with their own eyes.

- Rarely good relationship

It is the minus 17 degrees and the starlit sky that is the explanation.

- It's not very unusual that this happens when we have such cold weather now, but it is rare conditions are as good as tonight, "he says.

Had it not been so cold that it is in the evening we would have had namely fog.

- But the cold makes the water droplets in the air freezes, and makes fog into crystals, or as in this case - isnåler, all pointing the same way, "he says enthusiastically.

People are out there

More Loren Skau affiliations have called to Rome Blad and wondered what on earth they were witnessing. Several places are people out there and looking up at the sky.

After that, RB knows to be pillars to be seen in several places in Romerike Friday night.

In the summer wrote about a natural phenomenon that can remind a lot about lysstripene in the sky over Lørenskog tonight, but then lay the strips across the sky, and not vertically as here.
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