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Astronomy

Page history last edited by Jennifer Johnson 14 years, 9 months ago

Picture of Robert AitkenPicture of Annie Jump CannonPicture of Olaf Hassel 

  Robert Aitken                  Annie Jump Cannon        Olaf Hassel                   Henrietta Swan Leavitt

  Courtesy Sonoma State University                   Courtesy Wellesley College                           Courtesy of Rune Anda                                 Courtesy of the AAVSO

  John Goodricke

 

 

 

 

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