![Sawyer Hogg / Hogg / David Dunlap Observatory / Variable star / Star / Frank Scott Hogg / Astronomy / Main Belt asteroids / Helen Sawyer Hogg Sawyer Hogg / Hogg / David Dunlap Observatory / Variable star / Star / Frank Scott Hogg / Astronomy / Main Belt asteroids / Helen Sawyer Hogg](https://www.pdfsearch.io/img/b2c6ccf83d0b63ed14746892d5d5790f.jpg) 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 | | Helen Sawyer Hogg Astronomer Leading Astronomer Helen Sawyer Hogg held a doctorate in astronomy from Radcliffe College in Massachusetts. She conducted significant research on
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