Introduction
In Vedic astrology (Jyotish), the Navagraha are the nine influences that shape a birth chart: seven visible bodies and two mathematical points on the sky. Every chart is read by asking which of these nine sit where, how strong they are, and which areas of life they touch.
Think of the planets as nine characters in a story. Each has a temperament, a set of concerns and a way of acting. A student who knows the characters well can follow the plot of any chart, however complex it looks.
A note on language: Sanskrit names are given beside the English ones, because you will meet both in books, classes and software.
The nine planets at a glance
| Planet | Sanskrit name | Core theme | Keyword |
|---|---|---|---|
| Sun | Surya | Self, purpose, authority | Identity |
| Moon | Chandra | Mind, feeling, comfort | Emotion |
| Mars | Mangala | Drive, courage, action | Energy |
| Mercury | Budha | Thought, speech, trade | Intellect |
| Jupiter | Guru | Wisdom, teaching, growth | Expansion |
| Venus | Shukra | Love, art, enjoyment | Harmony |
| Saturn | Shani | Duty, time, limits | Discipline |
| Rahu | Rahu | Craving, novelty, ambition | Hunger |
| Ketu | Ketu | Release, insight, withdrawal | Detachment |
The nine in depth
The two luminaries: Sun and Moon
The Sun is the centre of the chart and the sense of "this is who I am." It speaks to confidence, direction and how a person takes their place among others. A well-placed Sun gives steadiness of purpose; a strained one can show up as pride or a need for approval.
The Moon is the inner weather. It describes how a person feels, rests and takes in the world, and it is read closely because it changes quickest and colours daily mood. A settled Moon brings emotional ease; an unsettled one brings sensitivity and restlessness.
The active and thinking planets: Mars, Mercury, Venus
Mars is the planet of effort. It shows how a person pursues a goal, defends a boundary or competes. Used well it is courage and stamina; used badly it is impatience and conflict.
Mercury governs the mind at work: learning, speaking, writing, counting and trading ideas. It marks curiosity and quick adaptation, and shows how someone explains things to others.
Venus looks after attraction and enjoyment. Partnerships, taste, creativity and comfort all fall under it, so it is the first planet most students check when studying relationships and the arts.
The planets of growth and discipline: Jupiter and Saturn
Jupiter is the great teacher. It points to what a person believes, what they are generous with, and where life tends to open up. It is linked with guidance, learning and good fortune.
Saturn is the slow, patient examiner. It rewards steady work over time and asks for responsibility in return. Its lessons often arrive late but last long, which is why it is tied to maturity and perseverance.
The shadow planets: Rahu and Ketu
Rahu and Ketu are not physical bodies. They are the two points where the Moon's path crosses the Sun's apparent path, and Vedic astrology gives each a strong character of its own.
Rahu pulls outward. It is the appetite for more, for the new and the unusual, and it can bring ambition, foreign influences and restlessness together.
Ketu pulls inward. It is the urge to let go, look beneath the surface and find meaning beyond possessions, and it often shows where a person feels detached or already experienced.
The two always sit exactly opposite each other in a chart, and are best read as a pair.
Worked example: reading the planets as characters
This is an invented example to show the method, not a real person's chart. Suppose a learner notes three facts about a chart: the Moon is strong, Saturn is strained, and Mercury is well supported.
- Name the planet's theme. Moon is feeling and comfort; Saturn is duty and limits; Mercury is thought and speech.
- Say what strong or strained means for that theme. A strong Moon suggests emotional ease. A strained Saturn suggests that responsibility feels heavy or arrives late. A supported Mercury suggests clear, flexible thinking.
- Combine them in one plain sentence. "This person feels at home in themselves and thinks clearly, but may carry a sense of pressure around obligations."
A full reading also looks at houses, signs and timing, which later courses cover. At the beginner level, the skill to build is turning each planet's theme into a sentence like the one above.
Key takeaways
- Vedic astrology uses nine planets: seven visible bodies plus Rahu and Ketu.
- Each planet has one main theme; learn the theme before the details.
- Sun and Moon describe the self and the mind; Mars, Mercury and Venus describe action, thought and attraction.
- Jupiter expands and teaches; Saturn tests and matures.
- Rahu and Ketu always sit opposite each other and are read as a pair.
Practise this
- Without looking back, write one sentence for each of the nine planets describing its theme in your own words.
- Pick a character from a film or story you know well and match them to the planet whose theme they show most.
- Write three sentences describing a person who has a strong Jupiter and a strained Mars.
- Share your answers in the Practice lab for instructor feedback.
Related courses and credits
- Related courses: The Elements of Vedic Astrology