Why Is The Sun Important

By Logan Walters

What Is The Sun?

The sun is a star that all planets except moons orbit. The sun is about 92,960,000 miles. The sun provides all heat that is necessary for the earth. The surface temperature of the sun is around 5,778 K which is 9940.73 F. It is also the most important source of life.

The Layers Of The Sun

The Core

The core is where hydrogen is converted to helium.This reaction is highly sensitive to light.

Radiation Zone

The Sun's radiative zone is the section of the solar interior between the innermost core and the outer convective zone

Convection Zone

A region of turbulent plasma between a star's core and its visible photo sphere at the surface, through which energy is transferred by convection. In the convection zone, hot plasma rises, cools as it nears the surface, and falls to be heated and rise again

Photo Sphere

The photosphere is the visible surface of the Sunthat we are most familiar with. Since the Sun is a ball of gas, this is not a solid surface but is actually a layer about 100 km thick


At other times, light from the chromosphere is usually too weak to be seen against the brighter photosphere. The third layer of the sun'satmosphere is the corona. It can only be seen during a total solar eclipse as well


an aura of plasma that surrounds the sun and other celestial bodies. TheSun's corona extends millions of kilometres into space and is most easily seen during a total solar eclipse, but it is also observable with a coronagraph


Spot or patch appearing from time to time on the sun's surface, appearing dark by contrast with its surroundings


A stream of incandescent gas projecting above the sun's chromosome.

Solar Flare

A brief eruption of intense high-energy radiation from the sun's surface, associated with sunspots and causing electromagnetic disturbances on the earth, as with radio frequency communications and power line transmissions


A natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, usually near the northern or southern magnetic pole