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Light Sources of Light Pillar
Does this light pillar occur naturally? Do light pillar involve light from the sun? What about man-made light, like a streetlamps? / Adakah tiang cahaya ini berlaku secara semula jadi? Adakah tiang cahaya melibatkan cahaya dari matahari? Bagaimana pula dengan cahaya buatan manusia, seperti lampu jalan?
Sun pillar as the sun below horizon
1. Sun pillar @ Solar pillar
1. Sun pillar @ Solar pillar
At Jones Beach, New York
Sun pillars are beams of light that extend vertically upward (or downward) from a bright light source, such as the sun. Sun pillars form when sunlight reflects off the surfaces of millions of falling ice crystals associated with thin, high-level clouds. For example, cirrostratus clouds. The ice crystals have roughly horizontal faces, it were falling through Earth’s atmosphere, rocking slightly from side to side.
The sun pillars often see when the sun is low in the western sky before sunset, or low in the east just after the breaking of dawn. Also, the sun pillar could appear when the sun is below the horizon.
They’re called "sun pillars" because the sources of it was the sun.
2. Moon pillar
2. Moon pillar
Moon Pillar is an optics of the atmosphere (halo) phenomenon in which a vertical streak of light appears above and below the moon, believed to be caused by the reflection of moonlight by ice crystals with vertical axes.
In certain conditions, especially in the Arctic, where the ice crystals can be close to the surface, it will form a moon pillar. The light from the Moon reflects off the ice crystals near the surface, creating a glow near the horizon.
Light pillars caused by the Moon’s light are called Lunar or Moon pillars. Lunar pillars may be seen when the moon is bright and shining against a dark enough sky.
3. Street Light
3. Street Light
Light pillars are an optical phenomenon caused when light is refracted by ice crystals. These lights tend to take on the color of the light source.
It is usually caused by street lights. However, any source of light can create a light pillar given proper conditions. The source of most pillars are man-made, for example street lights and other ground light sources. Light pillars occur close to the ground in the lowest levels of the atmosphere.
Light pillars can be seen at any time of night. They’re called "light pillars" because the sources to create this light phenomenon was the sun, the moon or even streetlights, in which case the name "light pillar" is more appropriate.
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