The star that keeps us alive
The Layers of the Sun
Temperature: 15,000,000 degrees Celsius
Function: Power house of the sun. This is where 99% of the Sun's fusion power comes from.
Identifying characteristics: extremely dense and hot. The core is the innermost layer of the sun. It is where most of the energy for the sun is created. It is contains about 34% of the Sun's mass, but only 8% of it's volume.
Function: The Radiative zone of the Sun is an area in which the energy that is created in the core is transported to the rest of the sun through radiation.
Other Facts: Second layer from the core. Atoms can bounces around in the radiative zone for up to 1 million years until they get to the convection zone.
The convective zone
Function: The convective zone is boiling, turbulent, rotates and generates magnetic fields.
Function: The photosphere is the surface of the sun. It is what is shown in pictures of the sun. It is a gas layer about 100 km thick.
Other facts: This is the layer that we are most familiar with. It is what we see when we look at the sun (don't look directly at the sun)! It is the thinnest layer of the sun. It is constantly changing.
Function: Located above the photosphere. Unlike other things in the solar system, the chromosphere gets hotter the farther away from the sun. Scientists don't completely understand this yet, but they think that the cause for this is because of magnetohydrodyamic waves.
Function: The corona is a aura of plasma around the sun that has very high temperatures. It expands millions of miles from the sun. It can only really be seen during a solar eclipse or with a coronagraph. Do not look directly at a solar eclipse without protection for your eyes!