Edouard Stephan

AUGUST 31, 2015

Edouard Stephan, a French astronomer, was born Aug. 31, 1837. In 1872, Stephan became director of the Marseilles Observatory in southern France, which had a new reflecting telescope built by Leon Foucault, the first to have a mirror ground from glass, with a silver...

Scientist of the Day - Edouard Stephan