Education
Bachelor of Arts, Harvard University, 1947; Doctor of Philosophy in Theoretical Astrophysics, Harvard University, 1950.
Bachelor of Arts, Harvard University, 1947; Doctor of Philosophy in Theoretical Astrophysics, Harvard University, 1950.
National Research Council fellow, 1950-1951; lecturer astronomy, University of California, Berkeley, 1951-1952; research associate physics, Princeton (New Jersey) U., 1952-1953; research associate, Harvard University, Cambridge, Massachusetts, 1953-1955; research fellow, lecturer, Harvard University, Cambridge, Massachusetts, 1955-1960; professor astronomy, Harvard University, Cambridge, Massachusetts, 1960-1980; Donald H. Menzel professor astrophysics, Harvard University, Cambridge, Massachusetts, since 1980.
Member American Academy Arts and Science, American Astronomical Society, International Astronomical Union, Royal Astrin.
Married; 6 children.