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31 май 1784 г. - Bessel,Germany
Описание:
How to calculate the distance between stars using parallax
Добавлено на ленту времени:
Astronomers time line
By
Fernando Cornejo Avalos
13 ноя 2018
0
0
341
Дата:
31 май 1784 г.
Сейчас
~ 241 г назад
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