1. Sun Mr. Skirbst Physical Science Topic 26

4. The Sun

5. Sun Structure Corona – outermost layer of atmosphere Chromosphere – middle atmosphere Photosphere – “surface” Core – nuclear fusion

6. Sun Temperatures Core = > 15,000,000 o C Photosphere = 6,000 o C Chromosphere = 27,800 o C Corona = 1,700,000 o C

7. Solar Activity Prominence – huge bright arches or loops of gas

8. Solar Activity Solar Flare – burst of light on photosphere (temp 2x)

9. Solar Activity Sunspots – dark, cooler area on sun’s surface (storm)

10. Solar Activity Solar Wind – continuous stream of high energy from corona

11. Life Cycle of a Star H-R DiagramH-R Diagram H-R Diagram AnimationH-R Diagram Animation Giant or Super Giant Star Formation Main Sequence Massive Star Low Mass Supernova VERY HIGH Black Hole Neutron Star White Dwarf Dead Star Brown or Black Dwarf

12. How Big is the Sun?