| Term: | Luminous pillars |
| Definition: |
White or sometimes reddish vertical streaks of light extending from above and below the sun; they are caused by light reflected off the mirror-like surfaces of ice; most commonly seen at sunrise and sunset. NSIDCCryosphere
GCW |
| Term: | Luminous pillars |
| Definition: | White or sometimes reddish vertical streaks of light extending from above and below the sun; they are caused by light reflected off the mirror-like surfaces of ice; most commonly seen at sunrise and sunset. |