"Based on Elements within the Zodiac, Cancer is considered compatible with Pisces and Scorpio."
"There are many variables that determine compatibility in astrology, such as birth dates, birth months,personalities, birth years, position of a sign within the Sun, the Moon, Stars, etc. The signs listed as compatible with Cancer do not reflect an individual profile or individual reading as interpreted within astrology, but rather reflect a general guideline and reference to compatibility as dictated by variables such as Qualities and Elements within the Zodiac. The branch in astrology dealing with interpersonal compatibilities is called Synastry."
"The modern symbol for Cancer represents the pincers of a crab, but Cancer has been represented with various types of creatures, usually those living in the water, and always those with an exoskeleton, decapods in particular."
"In the Egyptian records of about 2000 BC it was described as Scarabaeus (Scarab), the sacred emblem of immortality, although Peter Jensen claimed this sign had been a tortoise in Babylonia, and that it was so figured there and in Egypt 4000 BC. In the 12th century, an illustrated astronomical manuscript shows it as a water beetle. Albumasar writes of this sign in the work published in 1489 as a large crayfish. Jakob Bartsch and Stanislaus Lubienitzki, in the 17th century, described it as a lobster."
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Cancer the crab, plays a minor role in the Twelve Labors of Hercules. While Hercules was busy fighting the multi-headed monster, Hydra, the goddess Hera, who did not like Hercules, sent the Crab to distract him. Cancer grabbed onto the hero's toe with its claws, but barely breaking the rhythm of his great battle with Hydra, Hercules crushed the crab with his foot. Hera, grateful for the little crustacean's heroic but pitiful effort, gave it a place in the sky.
Individuals born when the Sun was in this sign are considered Cancer individuals. Under the tropical zodiac, the Sun enters Cancer on the moment of summer solstice by definition, or roughly on June 22, leaving it around July 22. Under the sidereal zodiac, it is currently roughly from July 16 to August 15. The Sanskrit name of Cancer in Hindu astrology is Karaka.
Twelve signs of the zodiac
Cancer is the fourth astrological sign in the Zodiac, originating from the constellation of Cancer. In western astrology, this sign is no longer aligned with the constellation as a result of the precession of the equinoxes. In astrology, Cancer is considered "feminine", negative (introvert) sign. It is also considered a water sign and is one of four cardinal signs. Cancer is ruled by the Moon. Being the fourth sign in the zodiac, Cancer has been associated with the astrological fourth house.