What is the secret of Sirius? Why is there a legend of Sirius all over the world?

Generally speaking, the Sirius we are talking about is Sirius A, which is a blue dwarf with a mass about twice that of the sun, a radius about 1.7 times that of the sun, and a distance of about 8.6 light years from the earth. It is worth noting that Sirius's brightness is very high. Relevant data show that Sirius's apparent magnitude is-1.46, and its brightness is as high as 25.4 times that of the sun. It is the brightest celestial body in the night sky except the moon, Venus and Jupiter.

As the brightest star in the night sky, Sirius has naturally become one of the most concerned celestial bodies, so there are legends of Sirius all over the world. For example, the ancient Egyptians observed the movement of Sirius, which was closely related to the flooding degree of the Nile. After they confirmed this fact, they regarded Sirius as a god. According to the observed phenomenon, ancient China regarded Sirius as a "sign of a major invasion" of evil stars. So it can be said that the mystery of Sirius actually comes from people's imagination. It is too bright for it.

The most mysterious legend about Sirius. It is said that many people living in Africa, Mali and Timbuktu, China, have mastered a lot of information about Sirius. In 1930s, two French scientists found that there were many descriptions of Sirius in many people's myths and legends, which were strikingly similar to modern astronomical observations. They even know that Sirius has a companion star (Sirius B, an invisible white dwarf).

Many isolated people know Sirius very well, which is really a very mysterious thing. In this regard, many alien lovers think that Duoan people may be descendants of Sirius aliens, and some even think that all people on earth are descendants of Sirius. However, the scientific community does not agree with this view.

In short, Sirius is not mysterious in nature. There are legends of Sirius all over the world, just because it is a very bright star in the night sky. When the attention is high, all kinds of legends will follow. After all, imagination is the most indispensable thing for us human beings.