The Discovery of the Interstellar Medium (ISM) Harry Kroto 2004

Hartman 1904 K Ti Fe Ca Na T (100K) Binary Diffuse cloud Harry Kroto 2004

Blue Shifted Red Shifted Harry Kroto 2004

Blue Shifted Red Shifted Harry Kroto 2004

Multiple Clouds in the Line of Sight Harry Kroto 2004

Electron Configuration 1s2 2s2 2p63s1 1s2 2s2 2p63p1 Sodium 2P1/2 2P Spin orbit coupling 2P3/2 589.00 nm 589.59 nm N2 N2 2S Harry Kroto 2004

Doppler Shifts in Interstellar lines / = / = v/c Harry Kroto 2004

Doppler Shifts of Interstellar NaD lines 589.00 589.59 (nm) / = / = v/c Harry Kroto 2004

Doppler Shifts of Interstellar NaD lines 0.59 589.00 589.59 (nm) / = / = v/c  = (x/x) 0.59 Harry Kroto 2004

Doppler Shifts of Interstellar NaD lines 0.59 589.00 589.59 (nm) x 150 mm / = / = v/c  = (x/x) 0.59 Harry Kroto 2004

Doppler Shifts of Interstellar NaD lines 0.59 589.00 589.59 (nm) x x 13 mm  150 mm / = / = v/c  = (x/x) 0.59 Harry Kroto 2004

Doppler Shifts of Interstellar NaD lines 0.59 589.00 589.59 (nm) x x 13 mm  150 mm / = / = v/c  = (x/x) 0.59 = (13/150) 0.59 = 0.051 (nm) Harry Kroto 2004

Doppler Shifts of Interstellar NaD lines 0.59 589.00 589.59 (nm) x x 13 mm  150 mm / = / = v/c  = (x/x) 0.59 = (13/150) 0.59 = 0.051 (nm) v= (0.051/589.0)3x105 Harry Kroto 2004

Doppler Shifts of Interstellar NaD lines 0.59 589.00 589.59 (nm) x x 13 mm  150 mm / = / = v/c  = (x/x) 0.59 = (13/150) 0.59 = 0.051 (nm) v= (0.051/589.0)3x105 = 26 km s-1 Harry Kroto 2004

Multiple Clouds in the Line of Sight Harry Kroto 2004

Harry Kroto 2004