Concept:An imaginary line of latitude in the Southern Hemisphere where the Sun is directly overhead at noon on the December solstice.Explanation:The Equator divides Earth into Northern and Southern Hemispheres. North of the Equator is the Tropic of Cancer at 2321∘ N. South of the Equator is the Tropic of Capricorn at 2321∘ S. This line marks the southernmost latitude where the Sun appears directly overhead.