Betelgeuse _ Betelgeuse constellation diagram

Orion Betelgeuse supernova explosion is approaching, what is the impact on the earth?

Orion is the most representative constellation in the winter sky, and Betelgeuse is one of the representative members of Orion and the red giant star (first-class star) of Orion. It is said that it is famous for forming a big triangle in winter, which is easy to observe and its volume is 1000 times that of the sun. (Note: Purge is the name of α(αOrion is or αorig in Bayer nomenclature), but there are surprising rumors recently. It is rumored that Lyon's dormitory will perish in the explosion sooner or later. It sounds hard to believe at first, but then why are there such amazing rumors? What kind of star is the dormitory? Why is there news of an impending fire? Listen to me in detail.

Astronomically speaking, Betelgeuse is also a red giant among stars. The diameter of a red giant is hundreds to thousands of times that of the sun, and its brightness is thousands of times that of the sun. The diameter of Betelgeuse is 1000 times that of the sun, so if you put your dormitory where the sun is now, you can go directly to Jupiter. Bright and easy to observe, but measured by optic nerve, a baseball 400 kilometers away. Betelgeuse is the star of Orion, so it can only be observed in winter. The southern sky is a little red, which means that there is Olivier's famous "belt" (a row of three stars) under it. In the clear night sky, it is easy to observe with the naked eye. A star with Betelgeuse mass will explode in large scale at the end of its life. Nuclear fusion takes place in the central nucleus of a celestial body with high quality but low density, thus accelerating the production of heavy elements. Until the stable "iron" is finally produced, the temperature rises sharply with the contraction of gravity.

When the central temperature exceeds 1000 billion, the endothermic reaction "light mass decomposition" occurs, and the central nuclear pressure drops sharply, causing the gravitational force to collapse and the reaction force to explode into a supernova. Once a supernova explodes, it can last for several weeks, and its brightness can be 1 100 million times that of the last one, or even the whole galaxy. China is an ancient city around the 2nd century. Bright stars suddenly appeared in the night sky and were named like reborn stars. It is worth mentioning that the explosion of this supernova is conditional, and its mass must be more than 8 times that of the sun. If its mass is similar to that of the sun, it will only form a white dwarf. But it will take another 5 billion years for the sun to become a white dwarf, and its life on stars is quite long. The characteristic of a star is that the larger its volume and mass, the shorter its life span. Therefore, if a person lets himself be obese, a series of diseases closely related to living habits, such as cardiovascular and cerebrovascular diseases, will occur, and his life span will naturally be shortened. Altair star entered various stages from 6,543,800,000 years ago, but it was observed that the dormitory was about 654.38+05% smaller and contracted faster than that observed in 2009 and 654.38+05 years ago. On 20 10, NASA observed that the dormitory was being deformed.

It is observed that the supernova explosion of Betelgeuse is nearby, and it may become a neutron star after the explosion. When did Betelgeuse break out? According to the existing observation, parameter 4 indicates that the internal runoff gas and the surface temperature are not uniform. Although there is no definite evidence to show whether this will be the precursor of stellar supernova explosion, the dormitory has reached more than 654.38+million years, which is the end of star life.