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Graha

Ketu (Ketu)

केतु

Ketu is the Moon's south node, the shadow planet always placed exactly opposite Rahu. Where Rahu reaches outward, Ketu turns inward. It shows detachment, spiritual insight and the skills carried from past lives, and it is read as the graha that loosens our grip.

Classical reference, by the Astex Astro team.

At a glance

Signifies
Detachment and moksha, spiritual insight, past-life skills, sudden separation, the maternal grandfather
Own signs
None (a shadow planet)
Exaltation
Texts differ (Scorpio or Sagittarius)
Debilitation
Texts differ (Taurus or Gemini)
Friends
Mars, Venus, Saturn
Enemies
Sun, Moon
Gemstone
Cat's eye (लहसुनिया)
Mahadasha (Vimshottari)
7 years
Nakshatras it rules
Ashwini, Magha, Mula

What Ketu stands for

Ketu signifies detachment and moksha. It points to spiritual insight, to research that goes deep and to talents a person seems to have always had. It also signifies sudden endings in a matter, and the house it occupies shows where one feels less need to hold on.

In family matters Ketu is linked to the maternal grandfather. Like Rahu it has no sign of its own and acts through its sign and house. People with a strong Ketu are often private, self-sufficient and quietly drawn to meaning rather than display. Its quiet influence is easiest to notice in the house it occupies.

When Ketu is strong

Texts differ on its exaltation, some naming Vrischika and others Dhanu. Whichever view is used, a well placed Ketu gives focus, intuition and a calm indifference to praise. It supports study of scripture, healing arts, mathematics and any field that rewards patient depth. Astrologers read both views and rely on the chart's other strengths.

Ketu does well in the 3rd, 6th and 12th houses and when it follows a strong sign lord. In such a chart detachment becomes a strength: a person can work without fuss, let go of what no longer helps and keep going when others lose interest.

When Ketu is weak

Texts also differ on its fall, some naming Vrishabha and others Mithuna. A troubled Ketu is read as a feeling of being unrooted, restless withdrawal or difficulty finishing what began with enthusiasm. It asks for gentle structure and for the company of grounded people. Here too, the rest of the chart gives the clearer answer.

Ketu is friendly with Mars, Venus and Saturn, neutral to Mercury and Jupiter, and counts the Sun and Moon as enemies. The assessment rests on the house, the sign lord and the planets joined with it, never on a single rule. That is why careful astrologers read Ketu together with its whole setting.

Traditional remedies

Tradition honours Ketu with the Ketu mantra and with worship of Ganesha, who is said to remove obstacles. Tuesday and Saturday are named in different traditions, and a quiet period of meditation or japa suits the graha well. Simple living is called its natural remedy.

The traditional donation is a blanket, given to someone in need. Feeding dogs and serving saints, hermits and pilgrims is considered service in Ketu's field. Cat's eye is linked with Ketu, but a gemstone should only be worn after a full chart reading. Such small acts of care are considered more valuable than costly gifts.

Questions people ask

Which signs does Ketu rule?

None. Ketu is a shadow planet, one of the Moon's nodes, and texts differ on its exaltation.

Is Ketu a graha with a body?

No. Ketu is a mathematical point, the Moon's south node, and the tradition pictures it as the headless body of the demon whose head is Rahu. It has no physical planet but is treated as a full graha in dasha.

How long is the Ketu mahadasha?

In the classical Vimshottari system the Ketu mahadasha lasts 7 years. Its themes of detachment and inner work are shaped by the house Ketu occupies and by the strength of its sign lord.