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 Date: 2014-07-18 14:17:55Sawyer Hogg Hogg David Dunlap Observatory Variable star Star Frank Scott Hogg Astronomy Main Belt asteroids Helen Sawyer Hogg |
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Date: 2014-07-18 14:17:55Sawyer Hogg Hogg David Dunlap Observatory Variable star Star Frank Scott Hogg Astronomy Main Belt asteroids Helen Sawyer Hogg |
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Helen Sawyer Hogg Astronomer Leading Astronomer Helen Sawyer Hogg held a doctorate in astronomy from Radcliffe College in Massachusetts. She conducted significant research on