Sextant Sextant is a measuring instrument used to measure the angle of elevation of a celestial object above the horizon
academickids.com/encyclopedia/index.php/Sex... Longitude Longitude describes the location of a place on Earth east or west of a north-south line called the Prime Meridian
academickids.com/encyclopedia/index.php/Lon... Equator The equator is an imaginary line drawn around a planet, halfway between the poles. The equator divides the surface into the Northern Hemisphere and the Southern Hemisphere...
academickids.com/encyclopedia/index.php/Equ... Latitude Latitude gives the location of a place on Earth north or south of the Equator..
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