Difference between revisions of "Sextant"
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| − | + | A ''Sextant''' is an instrument used for navigating on the sea by sighting on a star and determining its elevation above the horizon. It is excellent for determining latitude, but accurate longitude measurements require good timepieces as well, capable of working on ships which pitch and roll on the waves. | |
Revision as of 01:50, April 7, 2007
A Sextant' is an instrument used for navigating on the sea by sighting on a star and determining its elevation above the horizon. It is excellent for determining latitude, but accurate longitude measurements require good timepieces as well, capable of working on ships which pitch and roll on the waves.