Charles Edward St. John Photo

Charles Edward St. John

Born: Mar 15, 1857

Death: Apr 26, 1935

Birthplace: Allen

Nationality: United States

Charles Edward St. John

Date of Birth : Mar 15, 1857
Date of Death : Apr 26, 1935
Birth Place : Allen

Charles Edward St. John was an American astronomer. He was born in Allen, Michigan to Hiriam A. St. John and his wife Lois Bacon; the youngest of a family of four sons and two daughters. In 1873 he entered Michigan Normal College, then graduated at the age of 19. For the next ten years he suffered from ill health. After recovering, he became a teacher at the college, and in 1887 he graduated with a B.S. from Michigan State Agricultural College. He performed two years of graduate study in electromagnetism at the University of Michigan, then earned an M.A. from Harvard University in 1893. He was awarded a John Tyndall Fellowship and studied for a year in Berlin before returning to earn his Ph.D. from Harvard in 1896. After teaching for a year at the University of Michigan, he became an associate professor of physics at Oberlin College. He made professor in 1899 and became Dean of the College of Arts and Science in 1907. In May 1908 at the age of 51 he joined the staff at Mount Wilson Observatory. There he studied the Sun, observing sun spots, the structure of the solar atmosphere, examined the Sun's element composition using spectroscopy, and so forth.

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