Navigation in the Age of Explorations. Using a Sextant (Quadrant). Navigation by the North Star. In the Age of Exploration, the open ocean was a dangerous place for mariners. Good navigation was vital for survival. The North Star and a new instrument called a sextant helped navigation. .
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Navigation in the Age of Explorations
Using a Sextant (Quadrant)
Here is a photo of the night sky with the shutter left open. The stars appear to move in circular arcs. The North Star is the star in the center.