Introduction
Sirius B is a white dwarf star and it is a star system, the brightest star in the Earth's night sky. One fact is that it is the closest white dwarf to Earth. Sirius B began its life as a blue star with 5 times the Sun's mass, say astronomers. It basically swelled into a red giant and shrank into a white dwarf. If this blue star still was shining today, Sirius would be so bright it would cast shadows on Earth. Also it has the same mass of the sun. All in all, the white dwarf, Sirius B, is a very bright star that shrunk from a main-sequence star.
The Features
Sirius B is made of many gases such as mainly hydrogen and helium. The force of gravity on Sirius B is 350,000 stronger than on Earth, meaning 3 grams of matter so would weigh 2,200 pounds.The radius of Sirius B is 1.19 million km. Also, It is a part of the Canis
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A white dwarf forms only after the star has evolved from the main sequence and then passed through a red-giant stage. This occurred when Sirius B was less than half its current age, about 120 million years ago. Sirius B began its life as a blue star with 5 times the Sun's mass, say astronomers. It basically swelled into a red giant and shrank into a white dwarf.
Where is it Located?
Did you know the distance from Earth to Sirius B is 8.611 light years?. Sirius B is a white dwarf star that can be located in the constellation of Canis Major. Alpha Canis Majoris B is the Bayer Classification for the star. ... Sirius B has an apparent magnitude of 8.44 which is how bright we see the star from Earth.
Interesting Facts
The constellation Canis Major contains the brightest star in the night sky, Sirius B, a blue-white star 8.16 light distant and radiating more than 20 times the energy of our own sun. An actual fact, Sirius B has a companion star, the other white dwarf Sirius A. Sirius B used to be a main sequence star, but now it has shrunk into a white dwarf star.
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