Colorful clouds appeared over Huize County, Southwest China’s Yunnan Province, on Thursday.
The clouds, called "seven-colored auspicious clouds", were seen not long after the sunrise and continued until noon, attracting passers-by.
It is said that the phenomenon is called "solar corona", which is the diffraction of sunlight that occurs after refraction from the sun.
(Compiled by Yin Yue)
原文地址：http://en.people.cn/n3/2022/0211/c90000-9956667.html