Samuel Alfred Mitchell - Parallax Work and Leander McCormick Observatory

Parallax Work and Leander McCormick Observatory

Mitchell went back to Yerkes for the summers of 1909, 1910 and 1911 and then returned for a fifteen month sabbatical in 1912 and 1913. Frank Schlesinger first demonstrated the technique of determining stellar parallaxes photographically at Yerkes in 1905, and Mitchell (along with Frederick Slocum) carried out research applying the technique, publishing their results in 1913. At that point, he was offered the directorship at the Leander McCormick Observatory at the University of Virginia. Mitchell spent much of his time and energy as director coming up with funds for running the observatory and paying staff and graduate students. Mitchell started the use of photographic plates with the visual 26-inch refractor shortly after his arrival at the University of Virginia. He became well known for his work on stellar parallaxes and photometry. Dr. Mitchell was liked by faculty and students alike, known for helping to bring prestige to the University.