What is the name of the star that appears in the southern sky every day?

At night, the brightest star in the stellar world is Sirius. It is located in the constellation Canis. In spring, it shines in the southwest sky. Its mass is 2.3 times that of the sun and its radius is 1.8 times that of the sun. Its luminosity is 24 times that of the sun. Sirius is not only bright in itself, but also very close to us, only 8.65 light years away, so it looks particularly bright.

Sirius is very famous in history. The ancient Egyptians believed that Sirius was the goddess in charge of the Nile flood. Whenever the goddess and the sun appear on the horizon at the same time, the Nile will flood. They regard this day as the beginning of the new year. 17 18, Harley compared the position of his own star with Ptolemy's observation, and found that the positions of four stars, such as Sirius, changed slightly, thus finding that the star was not static. 1834, Bessel studied the motion of Sirius. After 10, it was inferred that it had an invisible companion. 1862, American astronomer Clark discovered this companion star. This companion star is the first strange celestial white dwarf discovered by human beings.