Complete Facts About The Sun

By Haywood Hunter


The Sun is one of many stars that can be found in the solar system, except that it is the biggest. It has a very huge size and covers 98 percent of the overall size of the solar system. With an average rotation of twenty five days at the equator, and thirty six days at the poles the Sun is really big.

Its diameter is 1,392,000 kilometer and has the size that is about one hundred and nine times bigger than that of Earth. The Sun is comprised of three main parts which is helium, hydrogen and other types of gasses. The Sun moves around the galactic core at an estimated speed of approximately 25,000 light years, and completes a revolution every two hundred and fifty thousand years.

The Sun's interior comprises of a Core, Radiative and Convective zones. The core is the innermost part where energy is generated through nuclear fusion. It is extremely hot and dense. The energy is transported from the hot core to the Radiative zone which is colder and covers about eighty five percent of the radius of the Sun.

Staying next to the Radiative zone is the Convective zone. The space it occupies makes up 15 percent of the entire surface of the Sun. Through a process called convection, energy rises from the core all the way to this zone.

The Photosphere which is the visible layer has a temperature of approximately 6,000 degrees Celsius. It always seems molted as a result of the turbulence created by energy eruptions.

The photosphere is referred to as the Sun's surface because it has photons that are able to escape into space. It is around 500 km thick, and extremely heated up, gaseous, and not something that can be seen through with ordinary eye alone.

The next area close to the Photosphere is Chromosphere. When energy emanates from the core, it moves through the Photosphere unto the Chromosphere. There are hydrogen clouds that forms at the top of it and is referred to as Faculae.

From gathered statistics, the Sun is 4.6 billion years in activity and will continue for another 5 billion years. It also predicts, the Sun will change in its last days by fusing helium into elements that are heavier. It will become very big and overcome the Earth. Then at the expiration of a billion years, it will change into what is called white dwarf and then stay another trillion years to cool down and ultimately fade into a black dwarf.




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