A light pillar is a (sometimes) natural phenomenon that takes place when light reflects off of a concentrated mass of ice particles in the air. Naturally produced light can emanate from the sun (a sun pillar) or moon (a moon pillar), but artificial sources of light such as street and house lights can also cause this display to happen. This spectacle is most likely to happen on the coldest of days. Light pillars will look different from every angle you view them, as you are seeing simply the reflection of light as it hits your eyes.

A light pillar is a (sometimes) natural phenomenon that takes place when light reflects off of a concentrated mass of ice particles in the air. Naturally produced light can emanate from the sun (a sun pillar) or moon (a moon pillar), but artificial sources of light such as street and house lights can also cause this display to happen. This spectacle is most likely to happen on the coldest of days. Light pillars will look different from every angle you view them, as you are seeing simply the reflection of light as it hits your eyes.