Pythic CosmosThe sky, computed to the arcminute and read like an oracle.

Astrology basics

How to read a birth chart for beginners

A birth chart is a map of the sky for a date, a time, and a place. It freezes the positions of the planets in the tropical zodiac and, when the time and place are known, sets the houses around the horizon of that moment. Reading one is a craft of layers. The layers stay distinct. A sign is not a house, and a planet is not a fate.

Start with the planets. In this library the ten are the Sun, the Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. The first seven are the classical set. Uranus, Neptune, and Pluto are later additions, and the pages for them say so. Each planet has a topic: the Sun for conscious vitality, the Moon for the body's needs and memory, Mercury for speech and exchange, and so on. Ask what the planet is trying to do, in the plain sense of its traditional role.

Then read the sign it occupies. The twelve signs are a backdrop of weather. Each has an element (fire, earth, air, or water) and a modality (cardinal, fixed, or mutable). Element is the stuff of the weather. Modality is how that weather moves: starting, holding, or changing. A planet in a sign borrows that weather. The sign pages also record rulership and dignities. A planet in its own sign is at home. A planet in exaltation is an honored guest. Detriment and fall describe a poorer fit, which asks for more craft.

Houses come third, and they need a birth time and a birthplace. They are twelve places of life, counted from the Ascendant, the sign rising on the eastern horizon. The first house is the helm and the body. The seventh is the partner. The tenth is public standing. Without a time, you can still read planets in signs. Whole-sign houses give an entire sign to each place. Quadrant systems divide by the angles and the cusps between them. The topics stay recognizable across those methods.

Aspects are the angles between planets. This library keeps the five major ones: conjunction, sextile, square, trine, and opposition. A conjunction is togetherness. A trine is the same element, an easy path. A square is friction between signs of the same modality. An opposition is a full face, awareness through what stands opposite. A sextile is a friendly opening that still wants a hand on it. Orbs are the few degrees of allowance around the exact angle. Closer is louder. A wide aspect is a murmur.

A practical order: note the Sun, the Moon, and the rising sign if you have a time. Then note which planet rules the Ascendant, because that ruler carries the chart's errand into whatever sign and house it occupies. Then read the aspects those three make. Leave Uranus, Neptune, and Pluto until the seven classical bodies have a sentence each.

The chart describes style, timing, and symbolic weather. A single placement is one layer. Sun in one sign, with the Moon in another and a house that tells a third story, is the ordinary case. Let the layers correct one another. This remains a reference for study, a symbolic craft rather than a medical, legal, or financial service.

When a word is unfamiliar, use the rest of this library. Sign pages hold element, modality, and dignity. Planet pages hold rulership. House pages hold the places. Aspect pages hold the five angles. Read one page, then give that piece a sentence in your own words. That sentence is the beginning of a reading.