On March 15th, 1725 (February 2nd of the Qing Yuan Triumphal Year), the Sun Moon Wall and the Pearl of Five Stars appeared once again in the sky in China.

Five-star pearls refer to the five planets of water, metal, wood, fire and earth lined up in the sky, connected like five pearls, and appeared in the sky. This is a celestial phenomenon. The sun-moon conjunction is to add the sun and the moon to bring seven celestial bodies (sun, moon, Venus, Jupiter, Jupiter, Mars and Saturn) together to form a line. This is: "The sun and the moon join the wall, and the seven lights are in the same palace".

This phenomenon occurred on February 5, 1962 and 1982. It has important scientific value for studying the laws of planetary motion and predicting the changes in nature.