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29 апр 1609 г. - Kepler finds that planetary orbits are ellipses with the sun at one focus.
Добавлено на ленту времени:
History of Astronomers
By
Stephanie Szczech
21 окт 2018
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378
Дата:
29 апр 1609 г.
Сейчас
~ 416 г назад
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