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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).
When is the sirius B star going to burn out?
It already has. Sirius B is a white dwarf, the dense remnant of a dead star. While it is no longer producing energy through fusion, Sirius B still glows with the leftover heat of when it was an active star. Because of the huge amount of heat and relatively small surface area, it will take trillions of years for Sirius B to cool.
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 absolute and apparent magnitude of Sirius B?
Sirius B is a faint white dwarf companion of Sirius A It has an apparent magnitude of +8.3 and an absolute magnitude of +11.18
Does Sirius have exoplanets?
Yes, Sirius is a binary star system composed of two stars, Sirius A and Sirius B. As of now, there have been no confirmed exoplanets detected in orbit around either star.
Is the star Sirius larger than earths orbit around the sun?
No. Sirius is a binary star system. The main body, Sirius A is a white star about 1.7 times the diameter of the sun and would easily fit inside the orbit of Mercury. The secondary body, Sirius B is a white dwarf that is slightly smaller than Earth, though possessing about the same mass as the sun.
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).
Is sirius a star or planet?
The star Sirius is not a planet or even a single star but is in fact a binary star, or two stars that orbit each other. Together, these two stars are often called The Dog Star, as they are the brightest object in the constellation Canis Major - or The Big Dog. The stars, named Sirius A and Sirius B, orbit each other about 20 Astronomical Units (the distance from the Sun to the planet Uranus) that takes about 50 years to complete on orbit. Right now, they appear to be moving away from each other and will reach their maximum separation on the year 2019. At a distance of roughly 8.6 light years, the Sirius binary star system is actually relatively close to us. Sirius A (the larger of the two binary stars) is also extraordinarily bright, about 25 time brighter than our sun. These two factors make Sirius one of the top ten brightest stars in our night sky. While Sirius A is very large and bright, Sirius B (the smaller of the two binary stars) is significantly smaller than it's companion - about the size of our Earth. But even at it's small size, Sirius B still has nearly the same mass as our Sun. That much mass in such a tiny space means more surface gravity (about twice that of Sirius A) and more heat (about 2.5 times that of Sirius A). Just because it's small, doesn't mean it's not awesome. Sirius is considered a wintertime star, usually only seen between the months of December and March. It is part of the Winter Triangle asterism along with Betelgeuse and Procyon. So if you're in the Northern Hemisphere and the weather begins to turn cold, take a look into the southern night sky and find Sirius, The Dog Star!
When is the sirius B star going to burn out?
It already has. Sirius B is a white dwarf, the dense remnant of a dead star. While it is no longer producing energy through fusion, Sirius B still glows with the leftover heat of when it was an active star. Because of the huge amount of heat and relatively small surface area, it will take trillions of years for Sirius B to cool.
What color is Sirius B?
Sirius B is a white dwarf, so it appears white to our eyes.
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.
Is 'Sirius C' real or not?
It is not real. Sirius is a two-star system containing only Sirius A and Sirius B.
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.
How long does it take Sirius B and Siruis to orbit each other?
About forever. If it were even aimed that direction, which it's not.Voyager is further from Earth than any physical man-made object ever, and it's still moving away from the Sun faster than any other physical man-made object, so it's in no danger of being overtaken anytime soon.However, it's still very, very near the Sun by interstellar distance standards.It takes light from the Sun about 17 hours to reach Voyager 1.However, Sirius is about 8.3 light years from the Sun ... that is, light from the Sun takes about 8.3 years to reach Sirius. That's about 17,500 times further away than Voyager is, and Voyager's been traveling since 1977. So, quick back of the envelope calculation ... it will take Voyager over 600,000 years to get as far away from the Sun as Sirius is, and as mentioned it's not pointed in the right direction to get to Sirius (or any other nearby star); according to NASA it's headed vaguely in the direction of the constellation Ophiucus.
What is the absolute and apparent magnitude of Sirius B?
Sirius B is a faint white dwarf companion of Sirius A It has an apparent magnitude of +8.3 and an absolute magnitude of +11.18
