Cancer (♋️) is the fourth astrological sign in the Zodiac, originating from the constellation of Cancer. It spans from 90° to 120° celestial longitude. In classical antiquity, the Sun transited this area between approximately June 22 and July 22,^[2] and in the modern era, the Sun transits this area between approximately July 21 and August 9.^[3][4]

In astrology, Cancer is the cardinal sign of the Water trigon, which is made up of Cancer, Pisces, and Scorpio.^[5] It is one of the six negative signs. Though some depictions of Cancer (astrology) feature a lobster, the sign is most often represented by the crab, based on the Karkinos.

Those who are born from approximately June 22 to July 22 are born under Cancer.^[2] Individuals born during these dates, depending on which system of astrology they subscribe to, may be called "Cancerians."^[6] Cancer is a northern sign and its opposite sign is Capricorn.^[7]A%20Manual%20of%20Astrology]] ^[9]cardinal sign.

Along with Scorpio and Pisces, Cancer forms the Water Trigon.^[10] The water trigon is one of four elemental trigons, fire, earth, air, and water.^[11] When a trigon is influential, it affects changes on earth.^[11] Cancer is said to be the house of Neptune and the exaltation of Jupiter, both astronomical bodies having influence over those born under Cancer.^[7]A%20Manual%20of%20Astrology]] Vedic astrology Karka^[12]

In Dante's Paradiso

Cancer is figured in Giovanni Maria Falconetto's 1517 painting, Cancer, as the guardian of the city of Verona.^[14] The Cancer symbol is also depicted in Agostino di Duccio's sculpture View of Rimini Under the Sign of Cancer (1450).^[15]