The sun is the largest star in the solar system. Stars are celestial bodies that can emit their own light, so this sun is a celestial body. This sun has the greatest gravitational force. Therefore this sun can be the center of the solar system and is able to attract the planets around it to form an orbit. Through their respective orbits, the planets circle the sun and are called the events of revolution. Here are 4 sun layers:
The photosphere layer#
The outermost layer of the sun is the photosphere. This photosphere is also called the light layer. Fotorser is a surface part of the sun which is a very large sphere of gas and has a thickness of about 350 km and the boundaries of this layer are not clear. This photosphere resembles a disc that has a golden color.
This layer of photosphere that emits the most powerful light, hence it is also called the light layer. The strong light emitted by this layer partially reaches Earth and we know as sunlight. In addition to light or light, the layer also emits heat energy along with the sun's rays or light. Since light and heat energy have been emitted or channeled around it, the temperature of this layer becomes the lowest of the other layers of the sun.
Kromosfer Coating#
This layer of the chromosphere is a layer that is above the layer of the photosphere. This layer of chromosphere is also often said as the atmosphere of the sun and this layer of the chromosphere is the lowest part of the atmosphere of the sun. This layer of the chromosphere is thicker than the layer of the photosphere, which is about 16,000 km (very thick).
The chromosphere layer is a layer of sun that contains particles such as protons, electrons, and neutrons. The temperature of this chromosphere layer averages about 6,000 to 20,000 kelvins. The deeper, the temperature of this chromosphere layer will heat up. Basically this layer of chromosphere is a layer that is difficult to see by the human naked eye. However, this chromosome layer can be seen with the human naked eye when a total solar eclipse occurs.
Corona#
This corona layer is the outermost layer of the sun. The corona layer includes both layers described above (photosphere and chromosphere). The corona layer is also referred to as the outer solar atmosphere layer. This corona is also a layer of gas, although the gas is very little or very thin.
This corona layer has a thickness of about 1,000,000 kelvins. Corona layer is a layer of the sun that contains a lot of iron atoms, nickel, argon, and also lime. We can observe the corona all the time by using a device called a telescope. The telescope used to observe the corona layer is called the coronagraph.
Core#
This sun core is the deepest part of the sun. So we can see that this part has the highest temperature among all layers. This sun layer has a temperature of about 15,000,000 kelvins. Because it has a very high temperature, then in this layer occurs fusion reaction.
The energy created by fusion reactions or thermonuclear reactions is then radiated out radiationally. The core of the sun is located at about 502,000 km below the surface of the sun. The core of this sun has a diameter of about 386,160 km. The magnitude of this solar core meets about 25% of the total sun rays in total.
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