Karka rashi (Cancer): ruler, element and keywords
Karka (Cancer) is the fourth rashi, ruled by the Moon, of water element and movable quality.
What it is
Karka's symbol is the crab. Its lord is Chandra (Moon), and Jupiter is exalted here at 5 degrees. The Moon has only this one own sign.
How it is worked out or read
Karka spans 90 to 120 degrees sidereal. Punarvasu (last quarter), Pushya and Ashlesha fall in this sign.
Where it appears on this site
Karka appears wherever a planet's sign is shown in the birth chart. See the Karka page.
The Moon's own sign
Karka is the only sign that the Moon rules, and the classical texts describe it as the house of the mind and the emotions. Its symbol is the crab, which is read as a protective, home-centred quality. Karka is a movable water sign, so it is responsive and changes with circumstances. When Karka is the Lagna, the Moon becomes the lord of the first house, and the chart reader looks at its nakshatra and its position in the chart. Jupiter is exalted in Karka, which the texts read as a sign of wisdom and generosity when Jupiter is strong there.
What the Moon sign adds
Even in a chart with another Lagna, the Moon sign is read separately. It is the sign the Moon occupies at birth, and it is used in many rules, including the Sade Sati check and the Moon-based houses. A reader who wants to understand the emotional side of a chart often starts from the Moon sign and the nakshatra together. The site shows the Moon sign in the panchang and the birth chart, and the chart checks use it for Sade Sati and for the Manglik count from the Moon.
Karka and protection
Karka's crab symbol is read as protection, the shell that guards what is tender inside. A person with a strong Karka emphasis may be deeply caring and attentive to the people they love. The reader may describe this as a sense of responsibility for home and family, and note that protection can also become withdrawal.
The Moon's own sign
Karka is the Moon's own sign, the only one the Moon rules. The Moon's mind and feeling are therefore most at home here, and a reader may look at the Moon's house and aspects to see how that comfort is used in the chart. Jupiter's exaltation in Karka adds a note of wisdom and generosity.
Karka in the year
Karka begins the second half of the year in the sidereal zodiac and is associated with the turning of the seasons toward the monsoon in the classical cycle. Readers who follow the year by the sky can see Karka as the sign in which the Sun begins to move south again.
Karka without planets
When Karka holds no graha, the Moon carries its themes, and its house takes on a caring, protective tone.