Alfred Harrison Joy

Alfred Harrison Joy

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Alfred Harrison Joy (September 23, 1882, Greenville, Illinois - April 18, 1973, Pasadena, California) was an astronomer best known for his work on stellar distances, the radial motion of stars, and variable stars.He was born in Greenville, Illinois, the son of F.P. Joy, a prominent clothing merchant in Greenville and one-time mayor of the town. He was educated in Greenville College and gradusted MA in 1904 from Oberlin College. After graduating, Joy went on to work at the American University of Beirut in the Syrian Protestant College as a professor of astronomy and the director of the observatory. He was forced to return to the U.S. in 1915 because of World War I. In the United States, he worked at the Mount Wilson Observatory from 1915 to 1952. There, he and his colleagues ascertained the spectral type, absolute magnitude, and stellar distance of over 5,000 stars. Joy also discovered the T-Tauri type star.show more

Product details

  • Paperback | 52 pages
  • 152 x 229 x 3mm | 91g
  • Log Press
  • United States
  • English
  • 613593628X
  • 9786135936285