Daniel Popper

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Daniel Magnes Popper (born August 17, 1913 in Oakland, California , † September 9, 1999 ) was an American astronomer .

Popper studied at the University of California, Berkeley, where he received his doctorate in 1938 with a thesis on the spectropolarimetry of the Nova Lacertae from 1936 supervised by Arthur B. Wyse . After various intermediate positions, he went to the University of California, Los Angeles in 1947 , whose astronomy program he significantly expanded and of which he was a member until his retirement in 1978.

Popper's work dealt with various areas of star astrophysics . Over many years and with the greatest care, he determined the orbits of binary stars , the basis for determining important star properties such as mass.

He was awarded the Karl Schwarzschild Medal in 1984.

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