Why does Jupiter have a drought with the moon?

In ancient times, people thought that Jupiter, Venus and the moon appeared in the sky together, which was a bad sign, that is, there might be drought, people would starve and there would be war. However, these are all superstitious statements.

Double stars with the moon, also known as "Jin Mu combined with the moon", means that Venus, Jupiter and the moon appear in the night sky at the same time. The appearance of "Double Star Accompanying the Moon" is because Venus, the closest planet to the Earth, is catching up with Jupiter from west to east in its operation. First Venus caught up with the nearest Jupiter, and then the moon caught up with Jupiter. When the distance between them is the closest, it presents a special astronomical phenomenon, which is both a "double star with the moon" and a "three-star line".

Shui Jing Zhu: "The merger of Mu Yi and Gui Ren led to the disappearance of Ozawa, Yunhe and Dream." It says here that it is drought. The emergence of Mu Yi and Gui Ren means the end of Shuide. "Zhanhai" said: "Taibai is out of the moon, and Yin State has a plan; Out of Zuoyang, the state has a plan. When the moon is too white, the princes will be complicit. " It is said that there is a war here, but it is all superstition.

Reasons for the formation of Venus and Jupiter accompanying the moon

According to astronomical experts, the orbit of the moon around the earth is an ellipse, which moves fast when it is near and slow when it is far away. If it is the first half of the month, there will be a full moon on the fifteenth; If it is slow, it will reach the full moon position in the early morning of 16 or 17.

On the celestial sphere, the planet and the moon just run to the same right ascension, and the distance is very close. This day is like "the planet meets the moon". Xiu Li Peng, a member of the Chinese Astronomical Society and director of the Tianjin Astronomical Society, said that when the planet meets the moon, the moon and the planet are very close in vision, and both viewing and photography are very distinctive. Among the eight planets in the solar system, Jupiter's brightness is usually second only to Venus, reaching -2.94 at its brightest.

The above contents refer to Baidu Encyclopedia-Jupiter with the Moon.