Rahu and Ketu Explained: The Moon’s Two Nodes
Rahu and Ketu are the points where eclipses happen. Here is the astronomy, the myth, what each means and where they are in autumn 2026.
Rahu and Ketu are the Moon’s north and south nodes: the two points where the Moon’s path crosses the Sun’s path as seen from Earth. They are not physical planets. In Vedic astrology Rahu and Ketu stand for worldly hunger and for letting go, and every eclipse happens close to one of them.
What are Rahu and Ketu in astronomy?
The Earth circles the Sun on one flat plane, and the Moon circles the Earth on another. The two are not quite level. The Moon’s orbit is tilted by about five degrees, as NASA’s guide to the Moon and eclipses explains.
Twice a month it crosses that plane. The point where it crosses heading north is the north node, or ascending node, which is Rahu. The point where it crosses heading south is the south node, or descending node, which is Ketu. The two always sit exactly opposite each other, 180 degrees apart.
The tilt is the reason we do not get eclipses every month. An eclipse needs the Sun, Earth and Moon in a straight line, and that can only happen when a new or full moon falls near a node. The solar eclipse of 12 August 2026 was an example. It was total across parts of Spain, Iceland and Greenland and partial in the UK in the early evening, as timeanddate.com’s eclipse page records. We covered it in our guide to the solar eclipse of 12 August 2026 in the UK.
The nodes are not fixed. They drift slowly backwards through the zodiac and complete a full circle in about 18.6 years. That works out at roughly 18 months in each sign, in reverse order: from Aries to Pisces to Aquarius, and so on.
What is the myth of Rahu and Ketu?
The Hindu story is told in the episode called Samudra Manthan, the churning of the ocean. The gods (devas) and the demons (asuras) churned the cosmic ocean together to bring up amrita, the nectar of immortality. When the gods were being served, a demon named Svarbhanu disguised himself and slipped into their line to drink.
The Sun and the Moon spotted him and raised the alarm. Vishnu threw his discus and cut off the demon’s head, but the nectar had already passed his lips, so both halves lived on. The head became Rahu. The headless body became Ketu. Rahu has pursued the Sun and Moon ever since and now and then swallows one of them, which is an eclipse. Having no body, he cannot hold them, and they soon reappear.
Jyotish, the astrology of India, calls them chhaya grahas, or shadow planets.
What do Rahu and Ketu each signify?
The image of a head without a body and a body without a head tells you most of what you need. Rahu is appetite that can never be filled. Ketu is instinct with no interest in appearances.
| Rahu (north node) | Ketu (south node) | |
|---|---|---|
| Core idea | Desire, ambition, reaching outward | Detachment, insight, turning inward |
| Typical themes | Novelty, foreign places and cultures, technology, fame, breaking convention | Spiritual practice, solitude, research, old skills, simplifying |
| At its best | Courage to innovate and to cross boundaries | Wisdom, focus and freedom from needing approval |
| When overdone | Obsession, restlessness, shortcuts, confusion | Withdrawal, indifference, self-doubt |
Western astrology uses the same two points but reads them more gently. The North Node is a direction of growth, and the South Node is a comfort zone built on past habits. Vedic astrology gives them more weight. They are counted among the nine grahas alongside the seven visible bodies described in our guide to what each planet means in astrology. Each node rules three of the 27 nakshatras, or lunar mansions, and each has its own long planetary period: 18 years for Rahu and 7 for Ketu.
How does the Rahu and Ketu axis work in a birth chart?
Because the nodes are always opposite, they always fall in opposite houses. Astrologers read them as a single axis, a kind of see-saw between two areas of life. Our guide to the 12 houses of the birth chart describes each area.
- Rahu in the 10th house, Ketu in the 4th. A strong pull towards career and public standing, with a lighter attachment to home comforts.
- Rahu in the 1st house, Ketu in the 7th. A drive to define yourself, with a need to learn give and take in partnership.
The signs matter too. A node behaves a good deal like the planet that rules the sign it is in, so Rahu in a sign of Venus acts differently from Rahu in a sign of Saturn.
A word on fear. The nodes attract more scare stories than anything else in Jyotish. The best known is Kaal Sarp Dosha, the claim that a chart is afflicted when all the planets fall on one side of the Rahu and Ketu axis. It is heavily marketed, usually together with an expensive ritual, yet many respected astrologers point out that it is missing from the main classical texts. No position of Rahu or Ketu means that you are cursed.
Where are Rahu and Ketu in autumn 2026?
The answer depends on which zodiac you use, so both are given here. Vedic astrology uses the sidereal zodiac, measured against the stars. Western astrology uses the tropical zodiac, which sits about 24 degrees further on.
| Zodiac | Rahu (north node) | Ketu (south node) | Timing |
|---|---|---|---|
| Sidereal (Vedic) | Aquarius (Kumbha) | Leo (Simha) | Since May 2025. Due to move into Capricorn and Cancer in early December 2026 |
| Tropical (Western) | Aquarius | Leo | Since late July 2026, for about 18 months |
By a quirk of timing, both systems name the same pair of signs this autumn. The overlap lasts only a few months. Most Indian almanacs, called panchangs, give 5 December 2026 for the sidereal shift, when Rahu enters Capricorn (Makara) and Ketu enters Cancer (Karka). Sources differ by a few hours, depending on the method of calculation.
To use a nodal transit, find the two houses it falls in, counted from your rising sign or your Vedic moon sign. Rahu’s house is where life tends to feel busier and more ambitious for those 18 months. Ketu’s house is where you may feel like clearing out and simplifying. Treat this as background weather, useful for reflection, not as a forecast of events.
Frequently asked questions
Are Rahu and Ketu real planets?
No. Rahu and Ketu are not physical bodies. They are the two points in the sky where the Moon’s orbit crosses the Sun’s apparent path. Vedic astrology calls them shadow planets and gives them the same weight as the visible planets because eclipses happen near them.
Are Rahu and Ketu the same as the North and South Node?
Yes. Rahu is the Moon’s north, or ascending, node and Ketu is the south, or descending, node. Western astrologers use the same two points but usually call them by their astronomical names and read them more gently, as a direction of growth and a comfort zone.
How long do Rahu and Ketu stay in one sign?
About 18 months. The nodes take roughly 18.6 years to travel once round the zodiac, moving backwards through the signs. They always change sign together, because they sit exactly opposite each other, so Rahu and Ketu are never in the same sign or in neighbouring signs.
Is Rahu or Ketu in my chart a bad sign?
No. Everyone has both in their chart. Rahu shows where you hunger for experience and Ketu shows where you can let go. Each has strengths and pitfalls. Labels such as Kaal Sarp Dosha are often used to alarm people, and you can safely treat them with caution.
The takeaway
Rahu and Ketu are the two crossing points of the Sun’s and Moon’s paths, turned by myth into a severed demon and by astrology into an axis of desire and release. In autumn 2026 they lie across Aquarius and Leo. Read them as a guide to where you are stretching and where you are letting go, and leave the fear aside.
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