moon pillar

moon pillar

[′mün ‚pil·ər]
(meteorology)
A halo consisting of a vertical shaft of light through the moon.
References in periodicals archive ?
To many people a gibbous Moon near the horizon has a weird or spooky look, and a ghostly Moon pillar will certainly add to this effect.
Sun and Moon pillars are vertical glowing columns above (or sometimes below) a low Sun or Moon, caused by reflection of light off the horizontal faces of floating ice crystals.
In a coming issue I will discuss Moon pillars and light pillars.