How is the solar halo formed? What is a solar corona? How did it come about?

Helioscopic halo, also known as round rainbow, is an atmospheric optical phenomenon formed by the refraction or reflection of ice crystals when sunlight passes through cirrostratus clouds. When light hits the ice crystals in the cirrostratus clouds, it is refracted twice and dispersed into various colors of light in different directions.

Its formation is associated with high clouds. When there are cirrostratus clouds, countless ice crystals float in the sky. Ice crystals around the sun and in the same circle with the sun can refract the same color of light into the human eye to form an inner infrared violet halo, (in fact) there are cirrostratus clouds composed of ice crystals in the sky, often around the sun there are more than one or two sun-centered, infrared-violet color rings, sometimes there will be a lot of colored or white points and arcs of light, these rings, points and arcs of light are collectively called ice halos.

The sun halo is also called the round rainbow. It is an atmospheric optical phenomenon that is formed by the refraction or reflection of ice crystals when sunlight passes through cirrostratus clouds. When the light rays enter the ice crystals in the cirrostratus clouds, they are refracted twice and dispersed into various colors of light in the same direction.

Conditions for the formation of solar halos:

The solar halo is a common atmospheric optical phenomenon whose formation is associated with high clouds. High clouds are generally composed of tiny Liangwu ice crystals, which are equivalent to prisms, and when sunlight passes through the ice crystals contained in high clouds, they are refracted and reflected twice to form a solar halo. Since high clouds containing ice crystals are generally the "pioneers" of thunderstorms, the appearance of solar halos often indicates that the weather will turn bad in a short period of time.

Therefore, there is a proverb that "the sun is halo and the rain is three, and the moon is halo and the wind is at noon".

The sun halo mostly appears in the spring and summer seasons, and the folk have the proverb of "the sun halo rains, the moon halo and the wind at noon", which means that if the sun halo appears, there will be rain in the middle of the night, and if the moon halo appears, it will be windy at noon the next day. To some extent, solar corona can be a precursor to weather changes, and it may become cloudy or rainy.

The circle around the sun is the solar halo.

Solar halo formation is associated with high clouds. When there are cirrostratus clouds, countless ice crystals float in the sky. Ice crystals that are surrounded by the sun and are in the same circle as the sun can refract light of the same color into the human eye to form an inner infrared violet halo.

When there are cirrostratus clouds composed of ice crystals in the sky, one or more colored rings with the sun as the center and infrared violet often appear around the sun, and sometimes many colored or white light spots and arcs of light appear, which are collectively called ice halos.

The sun halo appears mostly in the spring and summer seasons, the folk have the proverb of "the sun halo three more rain, the moon halo at noon wind", which means that if the sun halo appears, there will be rain in the middle of the night, if the moon halo appears, Lingkai will be windy at noon the next day.

To a certain extent, the solar corona can become a precursor to weather changes, and the weather may turn cloudy or rainy, but there is no scientific basis for saying that this phenomenon can predict the drought and flood of the climate.