Why this death is Probable There are many ways for other things to die but a star only has one, in this case the star polaris does. These death phases end up being probable because polaris is 45 times bigger than our sun. When the star is 10 times bigger than the sun, when is starts to die it burns up all if the hydrogen in its core,the carbon core contracts further and reaches high enough temperature to burn carbon to oxygen, neon, silicon, sulphur and finally to iron. After this occurs the core change causes a supernova explosion because of it being a Yellow super giant.
These phases are also probable according to an H-R diagram polaris has a surface temperature of 7,700 K and a luminosity of 10,000 making it a yellow super giant in its main phase of life. The mass has a big contribution because the mass depends on how much chemicals can be stored in the core of the star. This matters because the star runs of of hydrogen and when it is all gone the star starts to die. All that is left for polaris is to become a planetary nebula. It will run out of hydrogen so it would have to rely on making heavier more complex elements until all of the fuels run out. Polaris it will then shrink in to a white dwarf because the electrons from the dying star to become a white dwarf. |
Take a look at this website. it gives you an explanation of how ordinary stars die.
Big Vs. Small
There are many stars that are alike and different. A star that has a completely different mass than polaris is Proxima Centauri. It is the closest star to planet earth. At this sage right now it is a red dwarf. The next stage Proxima Centauri will get to is that it will swell up but still be a red dwarf. The last stage of the process is that it will become a white dwarf. That is the life of proxima Centauri compared to the yellow super giant, polaris.