1. Spectrogram 2-40 A for varying temperature

2. Spectra this is how we find out what everything is made of Vinay Kashyap Smithsonian Astrophysical Observatory or, What is Hosung up to? or,

3. SOLAR CHROMOSPHERE He II + Si XI 304 A 70 kK + 1 MK SOHO/EIT

4. SOLAR CORONA Fe XV 284 A 2 MK SOHO/EIT

5. SOLAR CORONA Fe XII 195A 1.5 MK SOHO/EIT

6. SOLAR CORONA Fe IX 171 A 1.2 MK SOHO/EIT

7. Wavelength Energy Flux Spectrum Atoms Ions

8. Simplified H atom Energy levels Spectral lines

13. Line intensity Level population Ion balance Abundance Atomic emissivity DEM

14. Continuum Processes Radiative Recombination “free-bound” Bremsstrahlung “free-free”

16. Spectrogram 2-40 A for varying temperature

21. Summary of coronal structure Fredholm integral of first kind

25. “ Dan Rather has never shown a spectrum on the CBS Evening News.” Ed Weiler NASA Associate Director