Edward Guinan

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Edward F. Guinan is a professor in Villanova University's Department of Astronomy and Astrophysics. He and two colleagues observed evidence of Neptune's ring system in 1968,[1][2] which was later discovered by Voyager 2 in 1989. He was also involved in building Iran's first high-powered telescope in the 1970s.[3] He has been, and continues to be, involved in various international astronomical collaborations, such as helping to organize teaching and development programs in North Korea.[4]

He received a B.S. degree in physics from Villanova University in 1964. In 1970, received his doctoral degree in astronomy from the University of Pennsylvania. His research interests are binary star systems, pulsating stars, black holes, evolution of the sun and solar-like stars, pulsating red stars, APT (Automatic Photoelectric Telescope) programs, apsidal motion studies, and searching for exoplanets.


  1. ^ John Noble Wilford (1982-06-10). "Data Shows 2 Rings Circling Neptune". Archives, The New York Times (June 10, 1982). Retrieved 2007-06-28. 
  2. ^ "Evidence for a Ring System on Neptune" (PDF). Abstracts, Astronomy ADS. Retrieved 2007-06-28. 
  3. ^ Faye Flam. "Hunt is on for another planet Earth". The Philadelphia Inquirer (June 6, 2009). Retrieved 7 July 2009. [dead link]
  4. ^ "Faculty in the News". E-Newsletter, Villanova University (March 2008). Retrieved 7 July 2009.