At noon today, the Penghu Meteorological Station observed a solar halo phenomenon in Penghu.

(The picture is provided by Penghu Meteorological Station)

[Reporter Liu Yuqing/Penghu Report] At noon today, Penghu suddenly experienced a halo scene, which looked like a circular rainbow surrounding the sun, attracting many people to report and go out to witness this astronomical spectacle, but experts and scholars urged the public not to look directly at it Too long in the sun, because the strong ultraviolet rays can easily cause eye damage.

According to the observations of the Penghu Meteorological Station, at 1:50 p.m. today, a solar halo phenomenon was observed in Penghu. A circular rainbow surrounded the sun. The astronomical term is "sun halo", which is an atmospheric optical phenomenon. Formed by the refraction or reflection of ice crystals.

When the light enters the ice crystals in the cirrostratus, it is refracted twice and scattered into various colors in different directions.

Please read on...

When there are cirrostratus clouds, there will be countless ice crystals floating in the sky. The ice crystals in the same circle around the sun can refract the light of the same color into the eyes of people, forming a halo of inner infrared and purple.

When there are cirrostratus clouds composed of ice crystals in the sky, when the sunlight hits the ice crystals, it will be reflected in the human eyes, resulting in ring-shaped or arc-shaped coils, usually with red light in the inner circle and purple light in the outer circle.

Sun halos often appear in spring and summer. There is a folk proverb, "It rains at three o'clock in the sun halo, and wind at noon when the moon halo occurs."

Generally speaking, a solar halo means that there is relatively sufficient water vapor at high altitudes, which often indicates that the weather will change to a certain extent. Generally, a solar halo indicates that there is a high possibility of rain, and it may blow wind or rain within more than ten hours.

The Penghu solar halo phenomenon ended at 2:40 p.m. and lasted for about 50 minutes, ending this astronomical spectacle.

The appearance of the astronomical wonder of the sun halo means that it may rain in the middle of the night.

(The picture is provided by Penghu Meteorological Station)