The exact mass of Sirius, which is a binary star system consisting of Sirius A and Sirius B, is approximately 2.1 solar masses (where one solar mass is the mass of our Sun). Specifically, Sirius A has a mass around 2.1 times that of the Sun, while Sirius B, the white dwarf companion, has a mass about 0.98 solar masses. Together, their combined mass is slightly less than 3 solar masses.
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The orbit of Sirius A and Sirius B takes about 50.1 years to complete one full revolution around their common center of mass. Sirius A is the brighter and more massive companion, while Sirius B is a white dwarf. Their elliptical orbit brings them as close as 8.2 astronomical units (AU) and as far apart as 31.5 AU over the course of their orbit.
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).
No, but Sirius B is,
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.
Sirius has a mass 0.978 that of the Sun, and a radius 0.0084 times that of the Sun. No, actually Sirius A has a mass of 2.2 that of the Sun and a radius 1.711 times that of the Sun.
It is, but at twice our suns mass, Sirius A is on the limit, of being an intimidate mass star. Sirius A will have a life cycle similar to that of our own star which is a low mass star, but burns hotter. Sirius B is a companion white dwarf star with a mass of around the same as our sun. Previously, it was thought to have been a star with a mass of around 5 times that of our sun, burning out more quickly than Sirius A.
Yes, Sirius is about twice as massive as our sun, making it a medium mass star. It is quite a bit brighter, however, and is the second brightest star in our sky.
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.
No, Sirius will not become a supernova. It is a relatively young star compared to those that typically go supernova, and its mass is not sufficient to trigger such an explosive event. Sirius is expected to eventually evolve into a white dwarf.
Sirius B is a white dwarf. So it is low mass compared to other stellar remnants.
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).
Yes, Sirius is larger than Barnard's Star. Sirius, a binary star system, consists of Sirius A, which is about 2.1 times the mass of the Sun and has a diameter approximately 1.7 times that of the Sun. In contrast, Barnard's Star is a red dwarf with a mass only about 0.14 times that of the Sun and a much smaller diameter. Thus, Sirius is significantly more massive and larger than Barnard's Star.
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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.
Sirius is actually a binary star system, which means there are two stars (A & B).Sirius A is 25 times more luminous that our Sun. It is estimated to be twice as large as our Sun.It is a type A star and is thus classified as a between Sub Giant and Giant.Sirius B is a white dwarf and has the mass of the Sun but the size of the Earth.Both stars are spherical in shape.
Sirius is larger than Algol. Sirius is a binary star system with Sirius A being the larger star with about twice the mass of the Sun, while Algol is a triple star system with the main star being smaller than Sirius A.