autobiography of sun in 1000 words
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Over the course of human history the Sun has been feared and worshipped. Rightfully so. What our ancestors knew on a fundamental level was that the Sun provides a vital ingredient for most of the life on Earth. Without the energy provided through sunlight, vegetation cannot grow, and without vegetation animals do not have a source of nourishment. However, what we know today that our ancestors did not is just how far reaching the scope of the Sun's influence is.
As our scientific knowledge has increased so too has our understanding that the Earth is merely a piece in the larger structure we know as the Solar System. What we have also discovered is that although other planets and bodies in the Solar System may not possess life, the Sun is just as influential to them.
WHAT IS THE SUN?
The Sun is what is known as a main sequence star; that is, a sphere composed primarily of the two gases hydrogen and helium such that certain conditions are met. The first condition is that it must have a mass falling within a certain range. Though debated, this range is generally accepted to be between approximately 1.4 x 1029 kg and 3.0 x 1032 kg. (This range is often describe as at least 75 times the mass of Jupiter and no more than 150 times the mass of the Sun itself.) The second and most important condition is that nuclear fusion must be present. Nuclear fusion is the process whereby two lighter atomic nuclei join or “fuse” together to produce a heavier atomic nucleus. In the context of stars, hydrogen is the lighter and helium the heavier.
Size of the Sun
The size of the Sun compared to the largest known stars (red giants) is not very big. However, if compared to the most common type of star in the universe, the red dwarf, the Sun is quite a bit larger. Thus, the Sun is not the biggest type of star in the universe, but it is definitely larger than most.
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Its Shivika Tiwari....