How many light years is Centauri from the earth?

Centauri is about 4.37 light years away from the earth.

Centauri is one of the southern constellations, which can only be seen in several provinces in the south of China on spring nights. There are two bright stars in the constellation. Alpha star was called Nanmener in ancient China, and its apparent magnitude was -0.27, making it the third brightest star in the whole day. In ancient times, beta star was called Mabelly I, and its apparent magnitude was 0.6 1, which was the first bright star in the whole day. The two stars are very close. In ancient China, they were collectively called "South Gate Double Stars", and Zheng He used them to navigate when he went to the Western Ocean in14th century. Nanmener is a triad star, and it has a companion star (proxima centauri) 1 1, which is only 4.2 light years away from us and is the closest star to the solar system.

Alpha Centauri is about 4.37 light years away from the sun, and consists of three stars, of which Star A and Star B are similar to the sun, forming a binary system called Alpha AB Centauri. Star C, named "proxima centauri", is a small and dim red dwarf star, the closest star to the sun (about 4.2 light years).

Literary works related to Centauri

Three-body trilogy

In Liu's novel Three-body, Centauri is the seat of the three-body civilization of alien intelligence. The three-body man determined the position of the earth civilization through the signal of the Red Shore base, and then deployed the invasion of the solar system. Finally, Centauri was destroyed by the dark forest.

Second, wandering the earth

In Liu's novel The Wandering Earth, in order to solve the problem that the sun becomes a red giant, human beings decided to build an "earth engine" to push the earth to Centauri, and finally the earth reached Centauri.