Karka (Karkaṭa)
कर्क
Cancer: fourth sign, watery and movable, ruled by the Moon.
Definition
Karka or Karkaṭa (Cancer, 'the crab') is the fourth rasi, 90°–120° of the sidereal zodiac. It is a movable, watery, even sign ruled by the Moon; Jupiter is exalted in it and Mars debilitated. Its last degrees, where it meets Siṃha, form one of the three gaṇḍānta junctions.