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What's happened to the Sun?
Sometimes it looks like the Sun is being viewed through a large
lens.
In the above case, however, there are actually millions of lenses:
ice crystals.
As water freezes in the upper
atmosphere, small, flat, six-sided, ice crystals might be formed.
As these crystals flutter to the ground, much time is spent
with their faces flat, parallel to the ground.
An observer may pass through the same plane as
many of the falling ice crystals near sunrise or sunset.
During this alignment, each crystal can act like a miniature lens,
refracting sunlight into our
view and creating
phenomena like parhelia, the technical term for
sundogs.
The above image was taken
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