Smithsonian Report, 1963. — Schwarzchild 



Plate 1 



1. Stratoscope I. The cylindrical cell at the buUuin uf the luaiii tube contains the 12-inch 

 primary mirror. The flat elliptical container is the 35-mm. fllm magazine. Beside it, 

 the rectangular box houses the TV camera which transmits the same picture just being 

 photographed down to the ground station. 



Section of the solar surface photographed vviili SudiuhLupe 1. 'I'hc peuLunbra of the 

 sunspot consists of nothing but narrow long filaments. The sunspot is surrounded b}" 

 the granulation which co\-ers the entire solar surface; the bright patches of the granula- 

 tion are hot convective gas masses rising from the interior. 



