What's sirian's story?

Sirius's brilliant starlight has always attracted astronomers. Now we know that Sirius is only 8.6 light years away from us, and it is the "runner-up" after proxima centauri (Nanmen II) among bright stars. The radius of Sirius is slightly larger than the sun, about1.2000 km (1.7 times the radius of the sun), and its surface temperature is about 1 1000 degrees.

There are many magical stories and scientific mysteries about Sirius. For example, in 1862, it was found that the matter on the companion star orbiting Sirius was incredibly "heavy", and something the size of a chalk head weighed more than 100 kg! In the 20th century, Sirius B provided the second astronomical evidence for Einstein's general theory of relativity-gravitational redshift; Scientists who study the evolution of celestial bodies have discovered the "paradox of evolution" ... Among many mysteries about Sirius, the most puzzling one is the story about Sirius. It began in 1930s, when there were two French anthropologists, Greole and Datle. In order to explore the origin and evolution of human beings, these two conscientious scientific warriors set out from Cairo and traveled hard to the Grand Duke of Mali (then a French colony), where they were still isolated from the world. For the sake of science, they abandoned all prejudice and colonial arrogance, overcame all kinds of unimaginable difficulties, worked, hunted and lived with the archduke of primitive tribe, treated them well and helped them improve their living conditions. After living for 20 years, they gradually gained the trust and respect of the Grand Duke. The archduke decided to tell the two whites the "top secret" of their tribe. They elected four most prestigious elders and held talks with two white people. The atmosphere of the talks was very serious and mysterious. The old people told them what they knew about astronomy in special Shangga language: the earth and other planets revolve around the sun in elliptical orbits; And the earth is like a top, running forward while rotating; The moon is a "dry and dead planet"; Jupiter has four satellites and Saturn has a halo ... all this makes two anthropologists feel extremely novel, but there is a more surprising story about Dagong below.

The four old people said that Sirius itself is a big star and a small star, and the small star revolves around the big star, just like the earth revolves around the sun. One of them also drew an ellipse on the ground with a crutch. A big black dot was drawn at the focus of the ellipse to indicate a big star, and many small black dots were marked at the other end of the ellipse to indicate the movement of a small star in the orbit. According to the double calculation, the orbital period of asteroids is exactly 100 years. They also said that this little companion star is "the beginning and end of all things in the world." It is the smallest and heaviest star in the sky. You can't find such a dense substance on earth. " Of course, they also told many fantastic stories.

These stories excited Greer and Dattel and kept them awake for several nights. They quickly packed their bags and returned to France to write these anecdotes and publish them in the African Science Journal! Suddenly, the western world caused a sensation: how can Dagong have such rich astronomical knowledge when he can't even write? How did primitive tribes know the mystery of Sirius? You know, it was not until 1862 that the West first learned about white dwarfs. Until the 1950s (when the article was published), many people tended to deny the observation data because they could not imagine such a huge density.

In addition, the 1950s was also the time when UFO incidents surfaced. All kinds of unimaginable and shocking UFO reports make people see things in a blur, and the news of Dagong makes UFO more magical, so all kinds of myths about Sirius spread like wildfire. ...

Temple, an American archaeologist at that time, followed the footsteps of the French 20 years ago and visited Mali again, and lived in Dagong for 8 years. In eight years, he had in-depth conversations with many archduke elders and priests, and collected many items. After he came back, he wrote an influential book, The Mystery of Sirius. There is a sentence on the cover of the book: "Has intelligent life from Sirius visited the earth?" In the book, the author vividly depicts the scene of Sirian's arrival on the earth by combining the fairy tales of the Archduke, and thinks that the "Nomo God" mentioned by the Archduke is the "Sirian" coming from the spaceship, and it is these whispers that impart those astronomical knowledge to the Archduke. In that book, the author described Sirius as a monster like a dolphin, and some people described it as a mermaid. Their upper body is human, but their lower body is fish. In addition to their mouths, there is another vent. ...

The problem of "cosmic man" has always been an exciting topic, and Temple's works still have a wide audience. However, wishes can't take the place of reality, and we can see all kinds of flaws after careful scrutiny: Archduke's "astronomical knowledge" was out of date even in the 1930s, because people knew the nine planets at that time, and the number of satellites had reached 25, and Io was not four but nine. Moreover, from the perspective of celestial evolution, the age of Sirius's companion star will not exceed 300 million years. In such a short time, there is no time to breed life on the planet, let alone intelligent life!

So how to explain the knowledge of the archduke? It seems that there is a possibility that some western missionaries had reached the primitive tribes in West Africa before Greer and Dutterer (many western missionaries came to China in Ming and Qing Dynasties and spoke a lot about western astronomy). It was they who taught Dagong limited astronomical knowledge, and Dagong was mixed with myths and legends, which led to the "birth" of Sirius.