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15 mars 1868 - Henrietta Swan Leavitt (1868 -1921) Va descobrir que les cefeides de major lluminositat intrínseca tenien llargs períodes (1912)

Ajouté au bande de temps:

Científics de l'Univers de Maria Dotú (1r btx A)

7 janv. 2018

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Date:

15 mars 1868

Maintenaint

~ Il y a 156 ans

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