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Gas doesn't weigh much, since a white dwarf is the core of a red giant. (the core is basically all the star's weight-the gases don't weigh much, so the weight doesn't differ much if a star lets go of all of its gas, since that's how white dwarfs are made)

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Q: Why does white dwarf star Sirius b have a mass comparable to the sun?
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What is star Sirius made of?

Like other stars, Sirius formed when a cloud of gas and dust called a nebula collapsed under the force of gravity. As the cloud collapsed it formed two masses that heated up until the nuclear fusion of hydrogen ignited, turning the two masses into stars by 200 to 300 million years ago. The result was a binary star system consisting of the smaller Sirius A and the larger Sirius B. Since Sirius B was more massive it burned through its hydrogen fuel more quickly and eventually exhausted its fuel supply. By about 120 million years ago it has shed most of its mass while the remainder collapsed into a small, dense remnant called a white dwarf, leaving Sirius A as the larger, more massive body. Sirius A has not yet finished its fuel supply and will likely last for about another 1.5 billion years or so.


Where can one go to buy a Sirius boombox?

A Sirius boombox may be purchased The Source, Future Shop or Best Buy. Some mass retailers such as Walmart or Target may also carry a few models of the Sirius brand boombox.


How is a protostar created?

Sometimes. If the total mass is high enough, and if the cloud of dust and gas collapse to reach a high enough density and pressure, nuclear fusion can begin in the core and it will become a star. If the total mass is not high enough, it may collapse into a "brown dwarf".


What is a verdi piece?

Verdi is best known for his operas, including "Aida," "Macbeth," and "Ernani." He also composed a beautiful "Requiem" Mass


What is the mass in kilograms of a 588 N?

Since mass = weight/gravity Mass = 588 Gravity = 9.8m/s^2 588/9.8 = 60kg 60kg

Related questions

How does the the mass and size of a white dwarf compare with the mass and size of the sun?

A white dwarf, also called a degenerate dwarf, is a small star composed mostly of electron-degenerate matter. They are very dense; a white dwarf's mass is comparable to that of the Sun and its volume is comparable to that of the Earth.


You know the white dwarf stars Sirius B has a mass comparable to the Sun because of?

Because a white dwarf star is the core leftover from a bigger star and the core is the densest part of the star so although the star is smaller than the sun it has a similar mass as it is more dense


Will Sirius become a supernova?

Sirius A does not have enough mass to become a supernova. It will end it's life as a white dwarf.


Is Sirius b a high or low mass star?

Sirius B is a white dwarf. So it is low mass compared to other stellar remnants.


Is a white dwarf bigger than a main sequence?

No. A white dwarf is the collapsed remnant of the core of a low to medium mass star. It has a mass comparable to that of a star, but is about the size of a small planet.


What is the next stage in the life of a lower-mass main-sequence star?

white dwarf. unless you count black dwarf of which none have been observed, only theorized.


White dwarf bigger than Jupiter?

I believe In terms of MASS, may be comparable to our sun. In terms of Size/volume, may be comparable to planets.


Why are white dwarfs so dense?

A white dwarf (or degenerative star) is the stellar remains of a star, that is composed mostly of electron degenerate matter. The electrons are already at the lowest possible energy level.A white dwarf's mass is comparable to that of the Sun but its volume is comparable to that of the Earth.


Is Sirius a low mass star?

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.


What is the mass of a yellow dwarf star?

Our Sun is a yellow dwarf, so it's mass will be comparable. See related questions for the mass of the Sun


What is the mass of the yellow dwarf star?

Our Sun is a yellow dwarf, so it's mass will be comparable. See related questions for the mass of the Sun


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.