Thursday, September 20, 2012
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 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 outer visible layer is referred to as Photosphere with a temperature of six thousand degrees Celsius. This outer layer looks mottled because of the turbulence of energy eruptions at the surface.
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.
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.
According to studies, the Sun has been very active for about 4.6 billion years and will be here for another 5 billion years. The studies also show that the Sun will transform in its last days and fuse helium into elements that are heavier. It will grow big to the point where it will overcome the Earth. After that, when a billion years is elapsed, it will collapse into a white dwarf and may endure an extra trillion years to become cool and finally fade into what is known as a black dwarf.
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 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 outer visible layer is referred to as Photosphere with a temperature of six thousand degrees Celsius. This outer layer looks mottled because of the turbulence of energy eruptions at the surface.
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.
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.
According to studies, the Sun has been very active for about 4.6 billion years and will be here for another 5 billion years. The studies also show that the Sun will transform in its last days and fuse helium into elements that are heavier. It will grow big to the point where it will overcome the Earth. After that, when a billion years is elapsed, it will collapse into a white dwarf and may endure an extra trillion years to become cool and finally fade into what is known as a black dwarf.
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