arthurt's picture
SIA Timeline Parent: 
SIA Timeline Event Body: 
The Astrophysical Observatory is established in a wooden edifice built at the cost of the Smithsonian on the grounds south of the Smithsonian Institution Building. It is one of the earliest observatories to practice the "new astronomy," or astrophysics. SAO focuses its research on the study of solar radiation and the solar constant—the amount of energy from the sun that strikes the outer edge of the earth's atmosphere. More -
Timeline Event Date: 
Saturday, March 1, 1890
Timeline Event Image: 
Timeline Event Image Caption: 
Buildings in the South Yard behind the Smithsonian Institution Building include a building for use by the Smithsonian Astrophysical Observatory. Smithsonian Institution Archives, Record Unit 95, Box 30A, Folder 20, Neg. # 80-12955.