Ketu is an imaginary plant, or we can say it’s a node that is positioned opposite Rahu, he governs a constellations which are Ashwin, Magha and Mool. North node is called Rahu and the South node is known as Ketu. It is believed to represent the tail of demon,South node or what we call Ketu is regarded as a point of difficult Karma from his past life where a person reaps the results of his selfish and egoist deeds of the past. While The other side of Ketu represents the tendency towards Moksha or liberation and mastery of secret and mysterious knowledge.

Ketu have some karakas which is  Spirituality, Meditation, Isolation, Witchcraft, Epidemics, Worms, Poison, Fire, Weapons, Flying accidents, Cataostriphic events, Enlightenment, Opposite of Rahu in many things – completely opposite of materialistic, Suspicious, Hidden, Scandals, Like mars- injuries, especially violent and sudden, Detachement, Moksha, Psychic abilities, Intuition, Ghosts, Spirits, Significator for Spine and renunciation.

Ketu and Rahu are famous for giving sudden and unexpected results. Both Rahu and Ketu are the parts of the same demon. Both imaginary planets are 180 degree apart. When Ketu, Moon and Sun lie in the same zodiacal longitude lunar eclipse takes place. Rahu has special enmity with Sun and Ketu with Moon.

Ketu also does not rule any zodiac sign since it has no physical appearance. Just Our Rishis have allotted Sagittarius sign as the house of exaltation for KETU. Some scholars think Ketu is exalted in Scorpio. Likewise it is debilitated in Gemini or Taurus. Ketu is considered strong in Jupiter sign.

We can say that Ketu feels comfortable with Mercury, Venus, Saturn and Rahu. Ketu is neutral to Jupiter. His enemies are Mars, Sun and Moon, we can consider Ketu as the signigicator Of the following as per UttaraKalamrita:

1) Worship of Chandi, Ganesh and others 2) Medical practitioner 3) Vultures 4) Final emancipation 5) Consumption 6) Painful fevers 7) Bath in Gangesh8) Great penance 9) Wind complaints 10) Mantra Shastra11) Instability of mind 12) Diseases of the stomach and eye 13) Vedanta 14) Grandfather 15) Small pox or boils 16) A servant of Shiva 17) Association with foreigner or Shudras.

We can observe that a strong Ketu gives good result and a malefic Ketu creates lots of hindrances in life, also Ketu if placed favorably in horoscope, it brings a lot of luxury, wisdom and intuition to a person. If otherwise, he causes unnecessary depression, poor concentration, boundless worries, anxiety and ghost related problems.

And that’s some characteristics and details of Ketu :