Tropic of Cancer, parallel of latitude at 23°30' north of the equator; it is the northern boundary of the tropics tropics, also called tropical zone or torrid zone, all the land and water of the earth situated between the Tropic of Cancer at lat. 23 1-2°N and the Tropic of Capricorn at lat. 23 1-2°S.
..... Click the link for more information. . This parallel marks the farthest point north at which the sun can be seen directly overhead at noon; north of the parallel the sun appears less than 90° from the southern horizon at any day of the year. The sun reaches its vertical position over the Tropic of Cancer at about June 22, the summer solstice solstice (sŏl`stĭs) [Lat.
..... Click the link for more information. in the Northern Hemisphere. When the Tropic of Cancer was named, the sun was in the constellation Cancer Cancer [Lat.,=the crab], in astronomy, constellation lying on the ecliptic (the sun's apparent path through the heavens) between Gemini and Leo; it is a constellation of the zodiac . It contains the star cluster Praesepe , but no bright stars.
..... Click the link for more information. at the time of the summer solstice.

Tropic of Cancer

Parallel of latitude approximately 23°27′ north of the terrestrial Equator. It is the northern boundary of the tropics and marks the northernmost latitude at which the Sun can be seen directly overhead at noon.

Tropic of Cancer [′träp·ik əv ′kan·sər]

(astronomy)

A small circle on the celestial sphere connecting points with declination 23.45° north of the celestial equator, the northernmost declination of the sun.

(geodesy)

A parallel of latitude 23.45° north of the equator, marking the northernmost latitude at which the sun reaches its zenith.

Tropic of Cancer

novel noted for its sexual frankness and use of obscenity, long banned in the U.S. [Am. Lit.: Henry Miller Tropic of Cancer]

See : Censorship