What Did Cecilia Payne Gaposchkin Do?
What Did Cecilia Payne Gaposchkin Do? 7, 1979, Cambridge, Mass., U.S.), British-born American astronomer who discovered that stars are made mainly of hydrogen and helium and established that stars could be classified according to their temperatures. Payne entered the University of Cambridge in 1919. How did Cecilia change the way we look at stars? Cecilia