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Earth

Antarctic
Polar region around Earth's South Pole
Antarctic Circle
Boundary of the Antarctic
Arctic (disambiguation)
Swiss-founded computer cooling components company
Arctic Circle
Boundary of the Arctic
Circle of latitude
Geographic notion
Eastern Hemisphere
Half of Earth which lies east of the prime meridian
Equator
Intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and midway between the poles
Geographical zone
Major regions of Earth's surface demarcated by latitude
Hemispheres of Earth
Division of the globe into equal halves
International Date Line
Imaginary line that demarcates the change of one calendar day to the next
Land and water hemispheres
Hemispheres on the Earth containing the largest possible total areas of land and ocean respectively
Meridian (geography)
Line between the poles with the same longitude
North Pole
Northern point where the Earth's axis of rotation intersects its surface
Northern Hemisphere
Half of the Earth that is north of the Equator
Polar regions of Earth
Regions around the Earth's geographical poles
Prime meridian
Line of longitude, at which longitude is defined to be 0°
South Pole
Southern point where the Earth's axis of rotation intersects its surface
Subantarctic
A region in the southern hemisphere that is just north of the Antarctic region
Subtropics
Geographic and climate zone
Temperate climate
Main climate class
Tropic of Cancer
Line of northernmost latitude at which the Sun can be directly overhead
Tropic of Capricorn
Line of southernmost latitude at which the sun can be directly overhead
TROPICS (spacecraft constellation)
NASA small satellite mission
Western Hemisphere
Geographical term for the half of Earth which lies west of the prime meridian and east of the antimeridian