Stars: Our Destiny


A clear night sky with a huge number of stars twinkling irregularly can easily take away anyone's heart. But what are stars? I know everyone understands this term, so what's special here, let's find out together, 
Classification of stars on basis of their initial size: 
Blue supergiants:  stars with mass greater than 8 solar masses 
Medium stars(yellow stars): a mass of star of around 1 solar Mass 
Brown dwarfs: small stars with mass smaller than the unit solar mass 
Formation of stars: 
According to this theory, stars are not formed individually, they are formed in groups in one single nebula, a nebula is a place in space where the star-forming matter is present in large quantity. There they gain their masses and after they are fully shaped and they go on their way.
Live period of stars : 
Stars die too. In this universe, nothing is permanent buddy.///back to topic
The life of stars depend upon their mass(size) 
More mass(or size) lowers the life period.
In a nutshell, mass is Inversely proportional to the life period 

1)Blue supergiants have a life period of only 10 million years.
2)Yellow stars have a lifetime of 10billion years 
3) we humans never witnessed any brown dwarf dying. 
The afterlife of stars :
Our sun(yellow stars) like stars are not able to produce supernovae instead they end up their life by forming white dwarf, the core of the dead star, and ejecting their outer layer into space.

Stars with mass greater than our sun and less than 8 solar masses end up their life by transforming themselves into a neutron star, the spinning monster 

And, a star of mass greater than 8 solar masses turns into a black hole.
 So, What can we imagine while stargazing, everything in this universe is present for only a small fraction of time, 
The one who is ruling today will be down tomorrow.
No one is small
In the next part, we will talk about how iron around you had once killed a star

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