19 lugl 201 anni a. C. - Astrolabe
Descrizione:
An instrument for observing the positions of heavenly bodies (stars) that was used before the sextant was invented.
Invented in 200 BC
Invented by Greek astronomer, Hipparchus
Aggiunto al nastro di tempo:
Data:
19 lugl 201 anni a. C.
Adesso
~ 2228 years ago
Immagini:
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