The Sun Section 20.2

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

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

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

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

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

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