His dissertation research, which consisted of observations of the orbits of 90 eclipsing binaries, was directed by Henry Norris Russell.
His dissertation research, which consisted of observations of the orbits of 90 eclipsing binaries, was directed by Henry Norris Russell. While working in the position in which he succeeded E. C. Pickering, he discovered dwarf galaxies in Fornax and Sculptor. In 1920, he and Heber Curtis participated in the so-called "Great Debate," in which he erroneously argued that globular clusters are located inside the galaxy and correctly argued that the Sun was not the center of the galaxy. For most of his career, he directed the Hale Observatory at Harvard. FTP, name this American astronomer who used Henrietta Leavitt's research on Cepheid variables to determine the size and structure of the Milky Way galaxy.
His dissertation research, which consisted of observations of the orbits of 90 eclipsing binaries, was directed by Henry Norris Russell.
Harlow {Shapley}