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Sirius A is about twice as massive as our sun, but has a surface temperature of around 10000 degrees Kelvin, compared with our suns surface temperature of around 5800 Kelvin. The Earth and all of the other planets would be a lot hotter if they remained at their current orbit, though the orbits would change as the gravitational pull of Sirius A would be greater. The water on earth would boil off and it would become a barren planet that could not support life. Even Mars may be too hot to support life if Sirius A were our star.
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∙ 12y ago
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How long does Sirius take to orbit the sun?
Sirius does not orbit the Sun.
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.
How would you describe the Sirius?
As seen from Earth, Sirius is the brightest sky in the night sky. It is best on view during the months of winter in the northern hemisphere. It can be found by finding the constellation of Orion, and using Orion's Belt, to follow down low and to Orion's left.
Is sirius bigger than earth?
Yes. Sirius actually consists of two stars. The main object, Sirius A is not only bigger than Earth but is almost twice the diameter of the sun. The secondary star, Sirius B is a collapsed remnant of a star called a white dwarf. It is slightly smaller than Earth but far denser.
How old is the star sirius?
From Wikipedia: "The age of the system [Sirius is a double star] is estimated at around 230 million years." So, a fairly young star, at least if compared to typical stars, including our own Sun.
What would happen if the sun was replaced by R136a1?
R136a1's heat would probably vaporize all of the planets.
What size is the star Sirius?
Sirius is a double star; the larger of the pair is twice the mass of the Sun and about 1.7 times the Sun's radius. So it would be about 740,000 miles radius.. and would be about five times the Sun's volume.
What is the size is Sirius?
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.
What is the size of Sirius?
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.
What would happen if Betelgeuse was your solar system star?
If the star Betelgeuse replaced the Sun, most planets will be inside the star, even Jupiter. It would outshine the Sun like the Sun outshines the Moon.
Can you live on Sirius?
No sirius is a star much hotter than the sun.
Is Sirius a giant?
No. Sirius consists of two stars. Sirius A is larger than the sun but is not a giant. Sirius B is a white dwarf,
How long does Sirius take to orbit the sun?
Sirius does not orbit the Sun.
Is the sirius star 10 times bigger then the sun?
No. In terms of diameter Sirius is 1.7 times the size of the sun.
Is Sirius brighter than the sun?
Yes it is much bigger.Probably 5 suns can fit in sirius.Not only is sirius bigger but it is much hotter as well.
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.
How much would you weigh on Sirius A?
If you weighed 100lb on Earth you would weigh about 5,400 lb for about a millisecond before you were incinerated and turned into vapour. Sirius A is a star about twice the size of our Sun.
