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30 abr 1594 ano - back staff

Descrição:

The backstaff is a navigational instrument that was used to measure the altitude of a celestial body, in particular the sun or moon.

Adicionado na linha do tempo:

history project

Byomar cardeanas

13 nov 2017

0

0

452

Data:

30 abr 1594 ano

Agora

~ 431 years ago

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