Personal planets
Fast-moving bodies. They describe individual temperament: the texture of your specific self.
| Body | Glyph | Domain |
|---|---|---|
| Sun | ☉ | Identity, vitality, the central self |
| Moon | ☽ | Emotional rhythm, inner life, what soothes |
| Mercury | ☿ | Mind, communication, learning, exchange |
| Venus | ♀ | Love, value, beauty, what you draw toward |
| Mars | ♂ | Drive, desire, action, the way you push |
Social planets
Mid-cycle bodies that connect the personal to the collective. They describe how you relate to time, structure, expansion and limits.
| Body | Glyph | Domain |
|---|---|---|
| Jupiter | ♃ | Expansion, meaning, faith, opportunity |
| Saturn | ♄ | Structure, discipline, time, mastery through limits |
Transpersonal planets
Slow-moving bodies that mark generations. They show up personally through the house they occupy and the aspects they make to your faster bodies.
| Body | Glyph | Domain |
|---|---|---|
| Uranus | ♅ | Disruption, awakening, sudden truth, individuation |
| Neptune | ♆ | Dissolution, dream, longing, the sea between |
| Pluto | ♇ | Death-rebirth, depth, what cannot stay surface |
Other points NatalChart.AI computes
Beyond the ten main bodies (Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto), the engine calculates the true lunar node, Chiron, Black Moon Lilith (the osculating apogee) and the four major asteroids, 17 bodies in all, plus two calculated points, the Part of Fortune and the Vertex, and the angles.
| Body | Glyph | Domain |
|---|---|---|
| True Node (Rahu) | ☊ | Direction of growth, the leaning forward |
| Chiron | ⚷ | The wound that becomes the medicine |
| Lilith (Black Moon) | ⚸ | The exiled feminine, the unowned |
| Ceres | ⚳ | Nourishment, care, what feeds |
| Pallas | ⚴ | Pattern recognition, strategic intelligence |
| Juno | ⚵ | Committed partnership, contracts of equals |
| Vesta | ⚶ | Devotion, sacred fire, the singular focus |
| Part of Fortune | ⊕ | A point of innate flow and good |
| Vertex | Vx | Fated encounter, the unexpected door |
How chart-grounded AI reads planets
The chart is calculated before the language model writes anything. It receives the bodies as structured chart data, with sign, house, exact longitude, retrograde status and aspects, and is instructed to explain what that combination means in plain language and to mention only placements that are in that data. That is an instruction, not a technical guarantee: AI-generated text can still contain mistakes, so check a cited placement against the calculated chart. See Chart-Locked AI Reading.
Frequently asked questions
How many planets does NatalChart.AI compute?
Seventeen bodies and points. Ten are the classical planets and the two lights: Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. The other seven are the true lunar node, Chiron, Lilith (the osculating lunar apogee) and the four major asteroids Ceres, Pallas, Juno and Vesta. The Part of Fortune and the Vertex are calculated as separate points, next to the angles. The positions come from Swiss Ephemeris.
Why is the Moon a 'planet' in astrology?
Astrology uses the word 'planet' loosely to mean any moving body in the chart, including the Sun and Moon (the 'luminaries'). It's an inherited usage from pre-Copernican cosmology. Modern astrology kept the convention because the symbolic distinction (luminaries vs the rest) still matters interpretively.
What's the difference between personal, social and transpersonal planets?
Personal planets (Sun, Moon, Mercury, Venus, Mars) move quickly and describe individual temperament. Social planets (Jupiter, Saturn) move slower and describe how you relate to society and structure. Transpersonal planets (Uranus, Neptune, Pluto) move very slowly and describe generational themes that show up personally through their house and aspects.
How accurate are the planet positions?
Arc-second accuracy across thousands of years. Swiss Ephemeris computes planetary positions to this precision; far finer than any chart work requires.