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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