1. The Sun
Section 20.2

2. Sun’s Interior
Central region of the sun where nuclear fusion takes place
Region of tightly packed gas where energy is transferred mainly in the form of light
Outer most layer of the sun’s interior

3. Sun’s Interior Layer that gives off visible light. The sun’s surface.
Middle layer of sun’s atmosphere
The outer layer of sun’s atmosphere. Streams out to become solar wind

4. Sun’s Features
Sunspots – cool spots that appear dark on the sun’s surface

5. Sun’s Features
Prominences – huge reddish loop of gas that protrudes from the sun’s surface

6. Sun’s Features
Solar Flare – eruption of gas from the sun’s surface when the loops in sunspot regions suddenly connect

7. Sun’s Features
Solar wind – stream of ions that emanate from the sun’s corona