Biographical Encyclopedia of Astronomers

2014 Edition
| Editors: Thomas Hockey, Virginia Trimble, Thomas R. Williams, Katherine Bracher, Richard A. Jarrell, Jordan D. MarchéII, JoAnn Palmeri, Daniel W. E. Green

Dugan, Raymond Smith

  • George S. Mumford
Reference work entry

BornMontague, Massachusetts, USA, 30 May 1878

DiedPhiladelphia, Pennsylvania, USA, 31 August 1940

American astronomer Raymond Dugan is best remembered for his accurate light curves of eclipsing binaries, in which one star passes in front of the other and blocks its light. He was also the first to recognize that the details of such light curves could be analyzed to reveal the heating of one star by the other and to show that distortion of spherical stars into ellipsoids by the gravity of their companions was common.

The son of Jeremiah Welby and Mary Evelyn Smith, a descendant of Miles Standish, Dugan completed his bachelor’s degree at Amherst College in 1889. The following 3 years were spent at the Syrian Protestant College (now American University) in Beirut, Lebanon, where Dugan was an instructor in astronomy and mathematics and acting director of the observatory. He returned to Amherst for a master’s degree in 1902 and immediately left to pursue his doctorate at Heidelberg, where he...

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Selected References

  1. Russell, Henry Norris (1940). “Raymond Smith Dugan.” Popular Astronomy48: 466–469.ADSGoogle Scholar
  2. Van Aerschodt, L. (1941). “Raymond Smith Dugan (1878–1940).” Ciel et terre57: 308.ADSGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.WestwoodUSA