What constellation is Sirius in?

Sirius is located in Canis major. Sirius's apparent magnitude is-1.46, which is the brightest star in the night sky, almost twice as bright as the second brightest star, Laonian, but still not as bright as the moon, Venus or Jupiter. Mercury and Mars are occasionally brighter than Sirius.

Sirius is a blue and white main sequence star accompanied by a white dwarf star, and the center of mass of the system is about 8.6 light years away from the Earth. Sirius B, the companion of a white dwarf, is the earliest observed white dwarf and one of the largest white dwarfs. Sirius is the brightest star in all the days and nights, so it has a special position in all ancient civilizations and has a large number of records.

Introduction to Sirius.

Sirius A is the larger one, and its mass is about 1.7 1 1 times that of the sun. The optical interferometer measures the radius of this star, and the estimated angular diameter is 5.936 0.016mas. Its star rotates very slowly, 16 km per second, so it does not flatten the star into a disk effectively. Vega rotates at a higher speed of 274 kilometers per second, making it arch outward at the equator.

According to the celestial model, Sirius A was formed when a molecular cloud collapsed. After10 million years, its energy production was completely provided by nuclear fusion. Its core becomes the troposphere, which uses carbon, nitrogen and oxygen to generate energy.