Whenever we see the stars shining in the sky at night, then it definitely comes to our mind that how are these stars formed? For me, this is the most interesting topic. Everyone has doubt that how black holes form and how stars born and where? So basically there are so many questions related to this topic and I will try my best to clear all your doubts.
Now to understand this topic in an exact way, you need to look at the chart which is given below.
Where do stars take birth?
Have you ever wonder that where do stars take birth?
Just as there are clouds on Earth, so are the clouds in space and we call them Nebula or Nebulae. The nebulae is the massive clouds of dust, gas, plasma and they are very large in size, probably bigger than the Galaxy. So Basically nebula is a place where stars born.
Nebula is made up of about 90% hydrogen , 10% helium and 0.1% are other elements like carbon, potassium, magnesium, nitrogen etc.
Nebulae also divided into some major categories – emission nebulae, reflection nebulae, dark nebulae, planetary nebulae and supernova remnants.
Now life cycle of a star starts from here. Dust and gas persist for a long time in Nabula until a star or any object creates a stir in those clouds of dust and gas, it may take thousands or even millions of years. So when a star or any body passes near the nebula or explodes in a star for some reason, waves arise due to gravity which produces a space time bend in that area, due to which dust and gas begin to collect in that area. After that all the gas and dust starts gathering in that area and this process lasts for many years until it becomes very large in size, It takes thousands of years to do this. Now this stage is called protostar.
Gravity starts increasing as the protostar gets larger who tries to make it smaller and gradually the density of the protostar starts increasing and the pressure also increases. Now ProtoStar starts heating up due to this pressure. This pro star keeps getting hot like this for hundreds of years until its temperature reaches 10 million kelvin. When its temperature exceeds 10 million kelvin, the process of hydrogen fusion starts in it. Then the protostar turns into a star and this star starts burning and its light becomes very strong. Then solar wind throws away a cloud of leftover dust and gas into distant space. After the birth of the star, the remaining astroid or comets causes the other space object to be born. Our sun was also born in this way.
Now, we have only known about the birth of the star, but the whole journey of the star is still left.
So if you are interested and still want to know the full life cycle of a star then you can check my next blog where I will discuss the life cycle of a star.