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I don't know for sure, but it's about 8.7 ligt years away, and a light year is 9.5 trillion kilometers away. if you multiply that, you're bound to get the answer.

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11y ago

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What is the size of Sirius?

Sirius is a binary star system consisting of two stars: Sirius A and Sirius B. Sirius A is the larger and more luminous star, with a diameter of about 1.7 times that of the Sun. Sirius B is a white dwarf star with a diameter of about 12,000 kilometers, roughly the size of Earth. The distance between the two stars is about 20 AU (astronomical units).


What color is Sirius B?

Sirius B is a white dwarf. As the name suggests, it will appear white.


How hot is Sirius?

Sirius is a binary star system with two main stars, Sirius A and Sirius B. Sirius A, the brighter and more massive star, has a surface temperature of around 9,940°C (17,964°F). Sirius B, the smaller and fainter star, has a surface temperature of about 25,200°C (45,332°F).


What is the life and death of Sirius the star?

Sirius's fate might be peaceful; just ejecting it's outer red giant layers to make a planetary nebula. It is 2.02 times the mass of the Sun. However, Sirius has a white dwarf companion. On Sirius B's death, Sirius A might have formed. At the other end, Sirius B might destroy Sirius A. White dwarfs have very strong gravity, and if it is close enough, Sirius B might steal material from Sirius A. When a white dwarf stealing mass from the parent star has enough mass to create iron, the iron triggers a Type 1a supernova. If this happens to Sirius B, Sirius A could either be destroyed by the immense force of the explosion, or become a runaway star, travelling faster than even Barnard's Star. If this is the case, Sirius A might eat smaller stars or crash and burn into a larger star. If it heads towards us if this happens, we would be doomed.


Can Sirius b burn hydrogen as fuel?

No. Sirius B is a white dwarf. It is the remnant of a star that used up its supply of hydrogen.

Related Questions

Is there a far away planet that orbits Sirius A?

Neither Sirius A nor Sirius B have any known planets.


Where is Sirius b located in the night sky?

Sirius, which consists of both Sirius A and Sirius B is in the constellation Canis Major, which, if you are looking south, appears below and to the left of Orion. Sirius B itself is too dim to be seen from Earth; the vast majority of the light from Sirius is from Sirius A. Even then, as a binary system, the two stars are too close together for us to see them separately.


What is the final stage for Sirius b?

Sirius B is already a white dwarf. The next transformation will be to become a black dwarf, but not for many many years.


What is the size of Sirius?

Sirius is a binary star system consisting of two stars: Sirius A and Sirius B. Sirius A is the larger and more luminous star, with a diameter of about 1.7 times that of the Sun. Sirius B is a white dwarf star with a diameter of about 12,000 kilometers, roughly the size of Earth. The distance between the two stars is about 20 AU (astronomical units).


Is Sirius a cold star?

No. Sirius is far from a cold star. Sirius is actually a binary system about 8.6 light years away. Sirius A is a white main sequence star just over twice the size of the sun. Sirius B is a white dwarf stellar remnant of about 0.978 solar masses. The temperature of the two stars are far higher than that of our sun. The sun is about 5778 Kelvin, Sirius A is almost twice that at 9,940 K and Sirius B is many times that at 25,200 K.


Is sirius a cold?

No. Sirius is far from a cold star. Sirius is actually a binary system about 8.6 light years away. Sirius A is a white main sequence star just over twice the size of the sun. Sirius B is a white dwarf stellar remnant of about 0.978 solar masses. The temperature of the two stars are far higher than that of our sun. The sun is about 5778 Kelvin, Sirius A is almost twice that at 9,940 K and Sirius B is many times that at 25,200 K.


Is Sirius a a white dwarf?

No, but Sirius B is,


How far apart are Sirius A and Sirius B?

Sirius is a binary star system Sirius A and Sirius B.The distance separating Sirius A from B varies between 8.1 and 31.5 AU. (See related question).


What color is Sirius B?

Sirius B is a white dwarf. As the name suggests, it will appear white.


Is 'Sirius C' real or not?

It is not real. Sirius is a two-star system containing only Sirius A and Sirius B.


What is the Circumference of siruis?

According to Wikipedia, "Sirius B has nearly the diameter of the Earth, 12,000 kilometers (7,500 miles), with a mass that is 98% of the Sun."


Does B Sirius cause Sirius A to wobble?

Sure - the two attract each other. In the case of a double star - as Sirius A and Sirius B - both revolve around their common center of mass.