Cancer (♋) is an astrological sign, which is associated with the constellation Cancer. It spans the 90-120th degree of the zodiac, between 90 and 125.25 degree of celestial longitude, which the Sun transits this area on average between June 22 to July 22 each year.
And under the sidereal zodiac, it is currently from July 16 to August 15.
In astrology, a planet's domicile is the zodiac sign over which it has rulership. The planet said to be ruler of Cancer is the Moon.
External links 
- The dictionary definition of Cancer at Wiktionary
- Media related to Cancer at Wikimedia Commons