can our biggest star,the sun can be a white dwarf star in the future?

Answer 1

The sun isn't "our biggest star"--it's the only star in our solar system. It is actually a medium-sized star, about halfway through its life cycle. It's really too small to develop into a white dwarf when it ages--those usually come from the death of a blue giant.

Answer 2

after approximately 4 billion years the sun will run out of its current nuclear fuel, and start changing its 'inner engine' burning different materials at a different inner temperature.
this process will change the sun into a red giant sun for limited time, cause if the fuel it burns at THAT stage is burned up there will be a third change in this burning process, and its believed the final result will be a white dwarf-star.

in fact it only matters what inner pressures a star has, and how much mass is holding the whole thing together.
at some point these values change when specific fusion-able materials are consumed. then changes in pressure size and mass occur.

becoming a white dwarf star is believed to be the end-stage of our sun since it does not have enough mass to collapse into a neutron-star or a black hole, once the fuel is out

Answer 3

A white Dwarf is the only option of the three end states of stars that our Sun could become.

The other two, neutron star or black hole, require a much bigger star.

when our sun runs out of Hydrogen in it's core, in about 5 billion years, it's busily turning it to Helium as we speak, it will have to readjust, it will become alot bigger, the centre of it will collapse and the outer bit will expand, out to about where Mars is today.

The Sun may go through a short Helium burning phase, but we are not sure if it will or not, it around the limit of mass for helium burning, once it's done that it will cool, radiation pressure will drop what's left of it's atmosphere, it will have shed alot of it, will collapse, but not as dramatically as in a neutron star or black hole, there will be no super nova.

The sun will then be a small hot White drawf that will not have an internal fusion reaction to generate heat, so it will cool and darken untill it will be totally cold, but this will take a very long time.

Hope that helps

Answer 4

gebobs's answer is great.

The entire lifeline of a star is pretty well dictated by its mass at "birth" when hydrogen fusion begins at the core, the star is then called a "zero age main sequence" star (ZAMS).

Star masses are given in units called "Solar masses" (the mass of our sun). It is thought that a very large number of stars are less massive than our sun. As such, they use up their hydrogen at a much slower pace: they will live a lot longer and they give off less light. Therefore, they are faint and difficult to see. Almost all the stars that we see with the naked eye are much bigger than our sun; our sun would be too faint to be seen from 50 light years.

Betelgeuse (the red star in Orion) is over 500 light-years away. Its mass is 15 times that of our sun. It is only 6 million years old (compared to approx. 4.57 billion years for our Sun). Because it has used up its hydrogen far faster than our sun, it has already reached its red supergiant phase (see http://en.wikipedia.org/wiki/Betelgeuse for more).

The lightest stars have a mass of only 2% that of the Sun (still 20 times bigger than Jupiter). They are called brown dwarfs or, unofficially, "substars" because they do not have fusion at the core. The lightest true stars are about 80 times the mass of Jupiter (7.7% the mass of our Sun).

The most massive stars found so far are 150 times the mass of our Sun.
From the third source:
"As a class, white dwarfs are fairly common; they comprise roughly 6% of all stars in the solar neighborhood."

Answer 5

Yes it will. From Wiki:

The Sun does not have enough mass to explode as a supernova. Instead, in 4-5 billion years, it will enter a red giant phase, its outer layers expanding as the hydrogen fuel in the core is consumed and the core contracts and heats up. Helium fusion will begin when the core temperature reaches up to 100 MK, and will produce carbon and oxygen. While it is likely that the expansion of the outer layers of the Sun will reach the current position of Earth's orbit, recent research suggests that mass lost from the Sun earlier in its red giant phase will cause the Earth's orbit to move further out, preventing it from being engulfed. However, Earth's water and most of the atmosphere will be boiled away.

Following the red giant phase, intense thermal pulsations will cause the Sun to throw off its outer layers, forming a planetary nebula. The only object that remains after the outer layers are ejected is the extremely hot stellar core, which will slowly cool and fade as a white dwarf over many billions of years. This stellar evolution scenario is typical of low- to medium-mass stars.

Answer 6

it truly is totally not likely in our community area of interstellar area over the subsequent 6 or 7 billion years. Stars are very small compared to the basically accurate separation of three or 4 gentle years between them. Now there is one difficulty the position it would want to take position, the middle of a globular cluster or galaxy. There the celebrities are frequently mere gentle days aside, no longer gentle years. The proper nucleus of a sprial galaxy would have 50 million stars or more effective filled right into a volume of area below 50 gentle years for the time of. Globular clusters are sparser, in spite of the undeniable fact that the celebrities lower back are very on the fringe of one yet another and shifting about in random guidelines. it really is unquestionably achieveable for a white dwarf and a significant-sequnce well-known human being to collide, that may bring about a supernova even as the white dwarf receives over the Chandresekahr decrease and is going supernova, both stars disrupt one yet another or they merge. 2 small stars can also merge right into a larger and hotter well-known human being in this way, forming "blue stragglers."

Answer 7

first of all the sun is not the biggest star. there is a Star in the Galaxy Orion Called Betelgeuse and it is about 10,000 times bigger than our Sun.

Answer 8

Yes, after many billions of years; first it will become a red giant, though, making the Earth uninhabitable, so we will need to find somewhere else to live, like Mars, Titan or space colonies.

Answer 9

Can and will. Billions of years in the future.

Answer 10

no it lacks the mass to become an white dwarf