Nanhesan is Betelgeuse's what?

The relationship between Nanhesan and Betelgeuse is that they are two stars in winter, and Betelgeuse is close to the end of life. Nanhe Sanyi flashed by.

Nanhesan (also known as α Canis minor, abbreviated as α CMi) is a star with an apparent magnitude of 0.34, located in the constellation Canis minor. It is the ninth brightest star in the star brightness list and the brightest star in this constellation.

However, according to modern observation methods, Nanhe Shisan is a conjoined star system consisting of two stars, with Nanhe Shisan A as the main star, a white F5 IV–V main sequence star, Nanhe Shisan B as the companion star and a DQZ white dwarf. According to the data measured by the Iba Valley satellite launched by the European Space Agency, the conjoined satellite system is about 1 1.46 light years away from the solar system (3.5 1 parsec), so it also belongs to proxima centauri.

Nanhesan is a beautiful star with an apparent magnitude of 0.38 and an absolute magnitude of 2.64. It is about 1 1.44 light years away from the earth, slightly farther than Sirius, and it is the subgiant of F5IV. Its luminosity is 6.9 times that of the sun, and its surface temperature is about 65 10℃. Compared with Sirius, its color is a little yellow.

Betelgeuse is the fourth star of Betelgeuse, also known as Orion? Orion α is a red Supergiant star in Orion (the first star of Orion). It is the twelfth brightest star in the night sky except the sun.

In the winter night sky, it forms a winter triangle with Sirius in Canis major and Nanhe III in Canis minor. Although it is the alpha star of Orion, actually the beta star of Orion (Betelgeuse) is brighter than it most of the time. In ancient astronomy in China, it belongs to the Seven Dwellings of West White Tiger (Seven Dwellings of West Palace White Tiger: Kui, Lou, Wei, Chang, Bi, Gou and Shen).