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The Sun What is the sun? The sun is a huge glowing ball of gas in the centre of thour solar system. The sun provides light, heat and energy for earth. The sun's diameter is about 1392,000 km and is 330, 000 times bigger than the earth. The sun's surface is 5500°c. What is the sun made of?

What is the sun made of? The sun is made of 70% helium, 28% carbon, 1.5% nitrogen and oxygen, 0.5% made up of other chemicals. The sun burns hydrogen making it into Helium in its extremely hot core.

Layers of the sun

**The inner core ** The high temperature of the sun’s core creates huge amounts of pressure inside the core – about 200 billion times the air pressure we walk around in at sea level. This huge pressure inside earth supports all the overlying gas, stopping the sun from completely collapsing.

**Radiative zone ** This acts as an outer shell for the core. The radiative zone has energy travelling through it by radiation. 
 * Convection zone**

The convection zone extends from the radiative zone to the sun’s surface. This zone is made of the convection cells.

**Photosphere**

The lowest layer of the atmosphere is called the photosphere. This zone emits the light that we see. The photosphere is about 500 km thick. It is often referred to as the sun's surface.

 **Chromosphere** <span style="display: block; font-family: 'Arial','sans-serif'; font-size: 18pt; line-height: 115%; text-align: left;">The chromosphere is a thin layer above the photosphere that rises in temperature with height. You can't see with the naked eye because the light from the photosphere of the Sun overpowers it. However, during a solar eclipse when this light is blocked out, it appears as a narrow, red ring around the Sun.

<span style="color: red; font-family: 'Arial','sans-serif'; font-size: 18pt; line-height: 115%;">**Corona**

<span style="color: #000000; font-family: 'Arial','sans-serif'; font-size: 18pt; line-height: 115%;">The corona consists of loops and streams of ionized gas. The structures connect vertically to the solar surface, and magnetic fields that emerge from inside the sun shape them.

<span style="background-color: #ef601a; color: #ffffff; display: block; font-family: Arial,Helvetica,sans-serif; font-size: 48px; text-align: center;">Solar eclipses <span style="color: #9900ff; font-family: Arial,sans-serif; font-size: 24px; line-height: 27px;">**Solar eclipse**

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 18pt; line-height: 115%;">A solar eclipse is when the moon passes in front of the sun. A solar eclipse can only occur with a full moon. media type="youtube" key="IZlzY-9Qf4M" height="247" width="274"
 * Total eclipse**

<span style="color: #000000; font-family: Arial,sans-serif; line-height: 27px;">A total eclipse happens if the moons umbral shadow comes across the earth’s surface, then a total eclipse of the sun is seen.

<span style="background-color: #ff8837; color: #ffffff; display: block; font-size: 48px; line-height: 55px; text-align: center;">Solar flares

A solar flare is an explosion in the sun's atmosphere. In recent research, it has shown that solar flares are caused by the phenomenon of the magnetic reconnection.

Magnetic reconnection is what causes the solar flare. When the solar arcade reconnects into a low arcade of loops, making a curve, it leaves the magnetic field unconnected to the rest of the arcade. The sudden discharge of energy in the reconnection causes a solar flare. media type="youtube" key="DEoT_EH_Uss" height="244" width="297" align="left"

<span style="color: black; font-family: 'Arial','sans-serif'; font-size: 16pt; line-height: 115%;"> Bibliograpghy- [] [] [] []