Mariner's astrolabe (1 gen 1295 anni – 1 gen 1750 anni)
Descrizione:
The mariner's astrolabe was an inclinometer used to determine the latitude of a ship at sea by measuring the sun's noon altitude (declination) or the meridian altitude of a star of known declination, can be found to the earliest date of 1295.Aggiunto al nastro di tempo:
Data:
1 gen 1295 anni
1 gen 1750 anni
~ 455 years