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21 sett 1893 anni - Wilhem Baade

Descrizione:

Calculated an accurate estimate of the size of the universe and discovered supernovas

Aggiunto al nastro di tempo:

Astronomers Timeline

ByElijah Hatcher

7 nov 2018

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318

Data:

21 sett 1893 anni

Adesso

~ 132 years ago

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