Monday, April 8, 2013

Complete Education Regarding The Sun

By Haywood Hunter


The Sun is a star located at the center of the solar system. It is the most outstanding and largest feature seen and contains about ninety eight percent of the total solar systems mass. Its rotation varies approximately at twenty five days at the equator and thirty six days at the poles.

It has a diameter of 1,392,000 kilometer and is 109 times the total size of Earth. The Sun is divided into three major parts, and is made up of hydrogen mass and the rest is helium and other types of gasses. The Sun orbits the galactic core approximately 25,000 light years and makes a complete revolution every 250,000 years.

The inner part of the Sun is made up of a Core, Convective and Radiative zones. The centre is known as the core and this is the place where energy is formed through a process called nuclear fusion. When the energy emanates from the core, it is moved to the nearest part which is the Radiative zone. The Radiative zone is cooler and makes up about 85 percent of the Sun's radius.

The Convective zone is next to the Radiative zone and occupies a space of up to 15 percent of the Sun's surface. The energy coming from the innermost part is moved here through stages called convection.

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 made up of photons that break out into the surface, and that is why it's called the Sun's surface. It has a thickness of about five hundred kilometer, and cannot be seen using the bare eyes. It is gassy in nature and hot.

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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