any of the imaginary circles around the earth parallel to the equator, marking degrees of latitude
one of the halves in which the earth is divided.
ex. northern, southern, eastern, and western hemisphere.
an imaginary circle around the middle of the earth, halfway between the North Pole and the South Pole
the meridian running through Greenwich, England, from which longitude east and west is reckoned.
a person who makes maps
a line of longitude