2. שיעור 8 מזג החלל Space Weather

3. Core 25% radius Energy release

4. Radiative zone 45 % Convection zone 30 % Partial ionization of heavy elements

7. The SUN White light Photosphere 100 km thick Mostly neutral hydrogen

8. SOHO images (MDI) Helioseismology Reconstruction of the interior

10. MDI

11. Ca II K Chromosphere Temperature rises 6000-2000 K Partially ionized hydrogen

12. Corona White light

13. SOHO images EIT (UV) Fe IX, X 171 T~1 MK Fe XII 195 T~1.5 MK Fe XV 284 T~2.5 MK He II 305 T~60-80 kK

15. Yohkoh - Sun in X-rays