Star the Birth, Life and Death
THE BIRTH, LIFE AND DEATH
STARS..!! I still remember my chilhood when i was tought a rhyme "twinkle twinkle little star how I wonder what you are, up above the world so high, like a diamond in the sky." so now my curiosity lead me to really wonder what they actually are?
As per definition Stars are giant ball plasma held together by gravity. stars also have their birth, their own life, and death too. so now the question arrives in mind how it all works by the way? the answer lies far away from our earth, so far away that we need 100,000 years to reach them.
It all begins with the fusion of hydrogen and helium gas. In our space the gravity gathers particles of dust and hydrogen gas and the clouds grow more dense. They heat upto fantastic 18 million degrees Fahrenheit, and nuclear fusion turns hydrogen into helium, the fire ignites, A star is born. The star have a life cycle just like us, the are born, they live, and they die. they have life cycle of billions of years, actually their life cycle is nothing to do with the steler age.
The small stars burn cool and dim and die quietly, they just fade away when they run out of the hydrogen fuel. The stars like our sun will live upto 10 billion years and when runs out of its hydrogen fuel its gravity will grip the core more harder and the star will grow hotter, eventually the outer layers will puff up burning the nearby planets with its firy demise. Finally the outer layer will blow off to space and the white dwarf remains, this white dwarf is a dieing star.
The bigger stars, twice the size of our sun lives hot and dies young it just burns for some millions of years and it doesn't go quietly there is more material for gravity to constrict, the star goes out with a bang called the supernova. Gravity packs the remains far denser than the white dwarfs called nutron stars, a teaspoon full of this stardust weighs more than a cruz ship packed with people. Some nutron stars in the supernova grow so dense that
STARS..!! I still remember my chilhood when i was tought a rhyme "twinkle twinkle little star how I wonder what you are, up above the world so high, like a diamond in the sky." so now my curiosity lead me to really wonder what they actually are?
As per definition Stars are giant ball plasma held together by gravity. stars also have their birth, their own life, and death too. so now the question arrives in mind how it all works by the way? the answer lies far away from our earth, so far away that we need 100,000 years to reach them.
It all begins with the fusion of hydrogen and helium gas. In our space the gravity gathers particles of dust and hydrogen gas and the clouds grow more dense. They heat upto fantastic 18 million degrees Fahrenheit, and nuclear fusion turns hydrogen into helium, the fire ignites, A star is born. The star have a life cycle just like us, the are born, they live, and they die. they have life cycle of billions of years, actually their life cycle is nothing to do with the steler age.
The small stars burn cool and dim and die quietly, they just fade away when they run out of the hydrogen fuel. The stars like our sun will live upto 10 billion years and when runs out of its hydrogen fuel its gravity will grip the core more harder and the star will grow hotter, eventually the outer layers will puff up burning the nearby planets with its firy demise. Finally the outer layer will blow off to space and the white dwarf remains, this white dwarf is a dieing star.
The bigger stars, twice the size of our sun lives hot and dies young it just burns for some millions of years and it doesn't go quietly there is more material for gravity to constrict, the star goes out with a bang called the supernova. Gravity packs the remains far denser than the white dwarfs called nutron stars, a teaspoon full of this stardust weighs more than a cruz ship packed with people. Some nutron stars in the supernova grow so dense that