What does the blood moon mean (why)

According to astronomers' prediction, this year's 1 1 month will see the phenomenon that "the dog eats the moon". In this case, there may be a "blood moon" spectacle. In ancient times, the blood moon was regarded as an ominous sign, and many people associated it with war, so many people were afraid of the appearance of the blood moon, because it represented the occurrence of bloodshed.

We all know that the moon plays an important role in the myths and legends of any nation. In ancient times, once something unusual happened to the moon, there were various interpretations. The ancients thought that if the moon changed color, there would be disaster. Youth is hunger, red is fighting, yellow is happiness, white is drought, black is water, and people are sick or dead. So if the red moon appears, it often represents war, mutiny and so on in people's eyes.

Moreover, during the war, there happened to be blood moons several times, so people believed this statement even more. According to China Nanqi ancient books, in 499 AD, after Emperor Nanqi ascended the throne, there was a blood moon. That night, the rebellious Xiao Yaoguang was defeated. On April 24th, A.D. 1644, the phenomenon of blood moon occurred. That night, the last emperor of the Ming Dynasty hanged himself in Jingshan Park. The next day, Li Zicheng led the rebels into Beijing, and the Ming Dynasty perished. Li, a famous astronomer in the Tang Dynasty, also mentioned that the red moon indicates the chaos of the world. So is the blood moon really related to the war?

Of course, the principle of blood moon has nothing to do. If the moon had changed color, it would have blown up. After all, the frequency of blood moon has been quite high recently. As early as 20 14, 20 15, 20 18 and so on, super blood moon appeared in May this year. If the blood moon really represents a disaster, it must be stuck and hasn't come out so many times.

Although earthquakes, extreme weather, hail and so on often occur this year, these disasters have nothing to do with the moon, so don't throw everything at the moon. These are all caused by human beings, which constantly destroy the environment and emit greenhouse gases, leading to the continuous warming of the earth. This is the main reason for frequent disasters, and the human blood moon is only a normal astronomical phenomenon.

We all know that there are three kinds of solar eclipses: partial eclipse, total eclipse and penumbral eclipse. When the moon only partially enters the umbra of the earth, there will be a partial solar eclipse, and when the moon completely enters the umbra of the earth, there will be a total solar eclipse. The blood moon is an astronomical phenomenon that only occurs during the total lunar eclipse.

This is mainly because during the total lunar eclipse, the moon completely entered the umbra of the earth, that is, the moon and the sun were completely separated by the earth. At this time, although the moon has no direct sunlight, it still has some astigmatism.

And this astigmatism will pass through the earth's atmosphere. We all know that the shorter the wavelength, the more it will be scattered by the atmosphere. In the sun, blue light has the shortest wavelength and red light has the longest wavelength, so blue light is completely scattered by the atmosphere, while red light passes through the earth's atmosphere. This is why the red moon will appear in the final total lunar eclipse.

Where can I see the super blood moon It is reported that the specific date of the blood moon in 165438+ 10 is19, so there is still more than half a month. According to astronomers' calculations, this month's partial solar eclipse covers a wide range, which can be seen almost all over Asia (except the westernmost tip), Oceania, North America, South America, the westernmost tip of Africa, the northwestern tip of Europe, the Pacific Ocean and the Arctic Ocean.

We can see the geographical location of our country in the second half of the year. If the weather is fine, we can enjoy the second round of blood moon this year at night. Therefore, the relationship between the blood moon and the war is only the imagination of the ancients. This is a very common astronomical phenomenon, and we don't have to think about anything. But the blood moon really caught up this time, and maybe it can be linked with the motherland in the future.