Sometimes the moon feels foggy at night, why?

Moon halo yuèyùn

[lunar halo]

Also known as "wind circle", the moonlight is refracted by clouds, forming an aperture around the moon, which can be used as a weather indicator Signs of change

The moon is haloed and windy, and the base is moist and rainy

Before the weather changes, we sometimes see one or even two or more colorful or colorful lights around the sun or moon. There is a white aperture, and the sunlight and moonlight seem to be much dimmer.

We call the halo that appears around the sun or moon "halo". The aperture that appears around the sun is called a "solar halo", and the aperture that appears around the moon is called a "lunar halo". This is a rather peculiar meteorological phenomenon. The color of the halo is generally inner infrared and purple.

Lunar halo - the phenomenon of light refracted by moonlight when it passes through ice crystals in clouds. It forms a colorful halo, with inner red and purple.

The appearance of solar halo or lunar halo often indicates certain changes in the weather. Generally, a sun halo indicates a high possibility of rain, while a large moon halo indicates windy weather. Therefore, there is a proverb among the people: "The sun hazes the rain at midnight, and the moon hazes the wind at noon."