The Sun is the biggest star that can be found amongst the solar system. It is so big to the point that it contains about 98 percent of the entire mass in the solar system. It rotates about 25 days around the equator, and 36 days around the poles. [youtube:lLBPZSFXYZg;[link:tanning bed tips, private lable sunless tanning spray, tanning lotions];http://www.youtube.com/watch?v=lLBPZSFXYZg&feature=related]
The Sun’s diameter is about one million three hundred and ninety two thousand km, and about one hundred and nine times the size of Earth put together. A three quarter of it is comprised of hydrogen mass with the remaining components being helium and other gases. Studies show that it orbits about twenty five thousand light years from the galactic core and completes a revolution once in every two hundred and fifty million years.
Inside the Sun, there are 3 basic elements which are a Core, Radiative and Convective zones. The centre is called the core, and a great energy is made here through a process that is referred to as nuclear fusion. This energy is then transferred to the closest zone called the Radiative zone. The Radiative zone makes up eighty five percent of the Sun’s radius.
The Convective zone is the part just below the Sun’s surface and covers about fifteen percent of the surface of the Sun. Energy is transported by a bulk motion of gas, and this is a process called convection.
The layer of the Sun that can be seen outside is called the photosphere and its temperature is six thousand degrees Celsius. It looks like it is always molting because of the unrest created as a result of internal eruptions.
The photosphere is called the Sun’s surface because it consists of photons that do break out into space. The thickness is about five hundred km and not an everyday thing that can be seen using the eyes only. It is severely hot and very gaseous.
Next to the Photosphere is a region called the Chromosphere. The energy emanating from the core, passes through all the way to the Chromosphere. The hydrogen clouds forming at the top is called Faculae and makes sunspot directly at the top.
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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Author: Haywood HunterThis author has published 229 articles so far.