How Big Is The Sun

Introduction on the sun:

Astronomers categorize the sun as a "Yellow G2 Dwarf." It is an average, middle-aged star. Without it there would have been no life on earth though. The life on earth has arisen because of its just the right distance from the sun at just the right moment in sun’s life and in a way we are lucky to be here at the right moment in the eternity of existence of universe.Having problem with Definition of Buoyancy keep reading my upcoming posts, i will try to help you.

Like all stars hydrogen nuclei fuse together to form helium nuclei leading to a burst of energy, heating up and powering the Sun and this atomic reaction makes the Sun lose a tiny amount of its mass continuously. We need not feel concerned though, as there is enough fuel to last a billion years or more.

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Explanation to how big is the sun:


The sun is big, very big. It constitutes 99% of matter in the solar system – remaining 1% being taken up by the  planets, comets, asteroids and moons of the solar system. It is equivalent to 330,000 times the mass of our earth. The Sun is about 1,391,980 kilometres (864,938 miles) in diameter. It is difficult to imagine as one can never see anything similar at close quarters. Compare it to our planet Earth, which is just 12,756 kilometres (7,926 miles) wide or let us take the biggest planet in the solar system, Jupiter, which is just 142,600 kilometres (88,700 miles) wide.


We can now see that the Sun is huge, but it is interesting to know that it is tiny in comparison to many other stars. A star called Betelgeuse is 0.5 billion kilometres wide and about 500 times the size of the sun! Stars tend to become bigger as they get older. Our Sun is still young and only about 4.5 billion years old, which is nearly half way through its life. It too will become bigger as it gets older and perhaps "eat up" some of the inner planets, Mercury, Venus, and possibly Earth and Mars too. Life will surely cease to exist on our planet Earth when that happens.