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Tropic of Cancer

Tropic of Cancer, parallel of latitude at 23°30′ north of the equator; it is the northern boundary of the tropics. 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 in the Northern Hemisphere. When the Tropic of Cancer was named, the sun was in the constellation Cancer at the time of the summer solstice.

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"Tropic of Cancer." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 22 Jun. 2017 <http://www.encyclopedia.com>.

"Tropic of Cancer." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (June 22, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/tropic-cancer

"Tropic of Cancer." The Columbia Encyclopedia, 6th ed.. . Retrieved June 22, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/tropic-cancer

Cancer, Tropic of

Cancer, Tropic of Line of latitude, c.23.5° n of the Equator, which marks the n boundary of the tropics. It indicates the farthest n position at which the Sun appears directly overhead at noon. The Sun is vertical over the Tropic of Cancer on about June 21, the summer solstice in the Northern Hemisphere.

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"Cancer, Tropic of." World Encyclopedia. . Encyclopedia.com. 22 Jun. 2017 <http://www.encyclopedia.com>.

"Cancer, Tropic of." World Encyclopedia. . Encyclopedia.com. (June 22, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/cancer-tropic

"Cancer, Tropic of." World Encyclopedia. . Retrieved June 22, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/cancer-tropic