Smithsonian Report, 1948.—Krause PLATE 5 
— ~ ——- SS —— 
SOLAR ULTRAVIOLET SPECTRUM 
3200-2300 ANGSTROMS 
2600 : 2500 2400 2300 
1. FRAUNHOFER SPECTRUM OBTAINED IN THE MARCH 7, 1947, MISSILE 
This is the first time the region below 2900 A. has been photographed with such high resolution. 
2 A 
8 B 
= 
Sit C 
uJ 
S 25 D 
is 
F 34 E 
a 
55 F 
88 G 
3400 3200 3000 2800 2600 2400 2200 
ANGSTROM UNITS 
2. COMPOSITE SPECTRA SHOWING OZONE ABSORPTION BAND 
The spectrum at 88 km. actually extends as low in wave length as does that at 55 km.. but because of lower 
intensity it did not reproduce in the print. 
