The light pillar appears like a thin column that prolongs vertically above and/or below the source of light. The light pillar is obviously visible when the Sun is low or lies lower than the horizon. It generally forms an arc that spreads from five to ten degrees beyond the solar disc. Light pillars can sometimes also be seen rising from the Moon. Light pillars are made by reflection from ice crystals with approximately horizontal faces.
Light pillars could also be made by man-made light sources, e.g streetlights.
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