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Helps design the Hale Telescope on Mount Palomar in California (22 янв 1941 г. – 30 апр 1948 г.)

Добавлено на ленту времени:

Henrietta Leavitt

ByShawn Cunning

2 окт 2018

0

0

499

Дата:

22 янв 1941 г.

30 апр 1948 г.

~ 7 years and 3 months

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