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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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Henrietta Swan Leavitt July 4, 1868- December 12, 1921 Discovered that period of fluctuation in brightness is regular and a result of the luminosity of the star Determined magnitude of 108 stars (4 Jul 1868 Jahr – 12 Dez 1921 Jahr)
Zugefügt zum Band der Zeit:
Astronomy Project
By
Anuthra Abeysinghe
9 Mon. zuvor
0
0
107
Datum:
4 Jul 1868 Jahr
12 Dez 1921 Jahr
~ 53 years
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