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29 апр 1784 г. - Bessel
Описание:
How to calculate the distance between stars using parallax
Добавлено на ленту времени:
isabella's timeline
By
Isabella Fernandez
13 ноя 2018
0
0
367
Дата:
29 апр 1784 г.
Сейчас
~ 241 г назад
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