How to read a natal chart

A natal chart — also called a birth chart; the two words mean the same thing — is a diagram of where the planets were, from where you were, at the moment you arrived.

Stand outside tonight and the sky forms a dome over you. Half of it is above the horizon, half below. The Sun, the Moon and the planets all travel along one narrow band across that dome, and the twelve signs of the zodiac divide the band into twelve equal stretches. A natal chart flattens that dome onto a page and marks where everything stood.

That is why the time and the place matter as much as the date. Everyone born on your birthday shares your Sun sign. Almost nobody shares your exact chart, because four minutes later the whole dome has turned, and the chart turns with it.

The circle you'll see has an outer ring of signs, an inner ring of twelve numbered houses, the planet symbols placed around it, and lines drawn between planets that stand at meaningful angles. Four things. That's the whole vocabulary.

Once you can find four things on it, the rest stops being decoration.

The horizontal line across the middle is the horizon. Everything drawn above it was in the sky above you when you were born. Everything below it was beneath your feet, on the far side of the earth.

Your rising sign sits on the left, at nine o'clock. On the chart it is marked AC or ASC, short for ascendant — rising sign and ascendant are two names for the same thing, and you will meet both. This is the degree that was climbing over the eastern horizon at the minute you were born.

The other three angles follow from it. Opposite the ascendant, at three o'clock, is the descendant (DC). At the top of the wheel is the Midheaven (MC), and at the bottom, the IC. Those four points are the skeleton of the chart, and everything else hangs on them.

Houses are numbered counter-clockwise, starting from the ascendant. Begin at nine o'clock and work downward: the 1st house is the wedge immediately below the left-hand line, and you keep going around until the 10th arrives at the top and the 12th brings you back to where you began.

The small numbers beside each planet are degrees. A planet at 24° Libra sits twenty-four degrees into the thirty that Libra occupies. Degrees are how you tell whether two planets are close enough to be talking to each other.

℞ means retrograde. From where we stand on Earth, that planet appeared to be moving backwards at your birth. It is common, it is not damage, and it usually means that part of you works inwardly first and shows up later than it does in other people. My own Mercury is retrograde.

Three things: the date, the time and the town.

The date gives you the signs. The place gives you the horizon. The time gives you the houses — and the houses are where a chart stops being general and starts being yours.

Your birth time is usually on the long-form birth certificate, the one with the hospital details, rather than the short certified copy. If you can't find it, the county or state vital records office that issued it holds the original. Some families have it written in a baby book. Some mothers remember it exactly.

If you can't find it at all, you can still read a great deal. Your Sun, your Mercury, your Venus, your Mars and usually your Moon are all certain without a birth time. What you can't calculate is your rising sign, the house each planet falls in, and the exact degree of the Moon — and that is most of the personal layer. Read the rest, and know there's a floor underneath it you haven't seen yet.

Every symbol on the page belongs to one of four categories, and each category answers one question.

This is the structure I learned from two legendary teachers, Steven Forrest and Kaypacha, and it is the clearest way in that I know. Steven puts it as four questions in a row, and once you hear it that way a chart reads almost like a sentence.

Put them together and you get: Venus (a drive toward love and beauty) in Scorpio (intensely, privately, all or nothing) in the seventh house (in one-to-one partnership), squaring Saturn (and it has a long argument with caution).

That sentence is a chart reading. Everything else is practice.

What, how, where, and how do they get along. Four questions, ten planets, one unique and beautiful life.

Before anything else, find three placements. Together they're usually called the Big Three, and they carry more of a chart than any other combination.

Your rising sign, also called the ascendant, is the sign that was coming up over the eastern horizon as you were born. It changes roughly every two hours, which is why the birth time matters so much. The rising sign is how you meet the world — your approach, your manner, the first impression you make before anyone knows you. It also sets where every house begins, so it quietly organizes the entire chart.

Your Sun sign is the one you already know. The Sun is the centre of you: who you are when you are most yourself, and what you are expressing when you feel most alive. Taking it for the whole chart is the single most common mistake in popular astrology. I always say — "your sun sign barely scratches the surface".

Your Moon sign is what you need in order to feel safe. It governs your instincts, your reactions when you're tired, and what actually comforts you rather than what you think should.

A quick way to feel the difference: the rising sign is the front door, the Sun is the work being done in the house, and the Moon is what you need in order to rest there.

A planet is not a thing that happens to you. It is a part of you that wants something. Read each one as a need, and the chart starts speaking in the first person.

The first seven move quickly enough to be personal. Uranus, Neptune and Pluto move so slowly that everyone born within a few years of you shares the sign — so for those three, the house they sit in and the aspects they make are what make them yours.

When you read your own chart, say the need out loud. "Part of me needs to go all the way down and come back changed, and it does that…" — then add the sign, then the house. You'll hear whether it's true.

If the planet is what and the sign is how, the house is where — which arena of ordinary life this part of you keeps showing up in.

The twelve houses start at your rising sign and run counter-clockwise from the eastern horizon.

A house with no planets in it is not an empty area of life. It simply isn't a place where your chart is doing loud work — look instead at the sign on its cusp and where that sign's ruling planet sits. That's the thread, and following rulers is how a flat chart turns into a living one.

House systems differ, and astrologers argue about them. I use Placidus, which is what you'll get from most calculators by default.

Aspects are the lines across the middle of the chart. They mark planets standing at particular angles to each other, and they describe how those two parts of you get along. There are five to learn first.

Notice that none of these is good or bad. A square is not damage. It is two parts of you that both want something legitimate, placed where they have to deal with each other — and the dealing is usually where a person's strength ends up being built. A trine is not a prize. What comes easily is easy to waste.

Orbs. An aspect doesn't need to be exact. The allowance is called the orb, and the tighter it is, the louder the aspect. I work with fairly tight orbs — within about 5° for the major aspects, closer for the Sun and Moon. If two planets are within 1° or 2° of exact, that conversation is running your life somewhere.

A square is not damage. It is two parts of you that both want something real, learning to work together.

Everything above is how any astrologer reads a chart. Next comes the evolutionary perspective.

The lunar nodes are two opposite points where the Moon's path crosses the Sun's. They aren't planets; they're a hinge. And they are the clearest statement in the chart about direction.

The South Node describes what is deeply familiar to you — the competence you arrived with, the reflex you reach for under pressure, the version of yourself you could do in your sleep. It is not a fault to leave behind — as you develop the North Node, those gifts begin to support you in new ways.

The North Node points at what you came here to develop. For many people it feels unfamiliar at first, or slightly exposing, before it starts to feel like theirs. For others it arrives quietly. The chart does not say which.

I believe that the most interesting tension in a life lives between those two points. You can read the whole chart through them: which planets sit near each node, which ones rule them, and which part of you keeps choosing the familiar when there is a dream of something new on the horizon.

This is also where the chart stops being a personality quiz. The nodes don't describe you. They describe a direction you are free to take or not.

Here is the order I use, and the one I teach. Work through it with your own chart in front of you.

Then look for a stellium — three or more planets crowded into a single sign or a single house. A stellium is the chart raising its voice. Whatever that sign and house are about becomes a central preoccupation of the life, and it usually takes decades to grow into rather than years.

Then stop. Don't try to resolve it into a verdict. A chart you can summarize in one line is a chart you haven't finished reading.

If you would rather do this on paper, I have laid the first move out as a free workbook — four pages that take you from your birth data to one placement read in your own words, with a worked example from my own chart.

The four questions will carry you a long way, and they are not the whole of it. Once the basics are steady, there is more in a chart than most beginners' guides mention.

The asteroids, and especially the goddess asteroids — Ceres, Pallas, Juno and Vesta, and further out, bodies like Lilith and Psyche. They fill in a part of the picture the ten classical planets leave thin, particularly around what women are asked to carry. I work with them in nearly every reading.

Fixed stars. A handful of stars sit at degrees carrying a long recorded tradition, and when a planet of yours lands on one, it tends to be something people notice about you before you do.

Chiron — the wound that becomes the teaching, and often one of the most immediately recognizable points in a chart once somebody shows it to you. Chiron describes an area of life where we may feel especially sensitive, different, inadequate, or aware of something that does not seem easily "fixed." But Chiron is not simply a symbol of pain. Over time, our relationship to that wound can become a source of unusual understanding, compassion, and wisdom.

The sign describes the nature of the sensitivity, while the house shows where it tends to be experienced most personally. Aspects to Chiron can reveal which parts of the personality become involved in that process. We do not necessarily erase the wound or outgrow it completely. More often, we learn how to live with it consciously enough that it stops defining us — and sometimes, precisely because we have had to understand that territory so deeply, we become especially capable of helping others navigate it too.

The angles beyond the rising sign. Your chart has four angles, and two of them get almost no attention in beginners' guides. The Midheaven, marked MC, is the highest point of the chart — the degree that was directly overhead when you were born. It describes your vocation and your public life: what you are known for, what people expect of you, and the kind of contribution that feels like yours to make rather than a job you happen to hold. Opposite it sits the IC, the lowest point, which describes your roots and your private floor. The two together are the vertical axis of a life: where you came from, and what you are building out in the open.

The Midheaven is often the fastest way to make sense of a career that has never followed a straight line, and it is one of the first things I look at when someone comes to me about their work.

None of these replaces the four questions. They are what you add once the four are second nature.

If you have worked through your own chart with this guide, you have already done something most people never do. You didn't look up what your sign means. You read a chart.

The four questions don't change as you go deeper. What changes is how much you can hold at once, and how much of it you can hear in a real conversation with a real person in front of you. That part only comes from practice on actual charts.

Keep practicing. Read Your Own Chart is a free four-page workbook that turns this guide into something you do rather than read. Your birth data, my own chart annotated so you can see what every part of a wheel is called, all ten planets and all twelve signs and houses on one sheet, and then your own placement written out and questioned. About half an hour, and yours to print. It leaves aspects for later, on purpose.

Go further. The Fundamentals is the whole thing taught properly: nineteen lessons, a video for every page of a nineteen-page workbook, the aspects in full, and charts to practise on that are not your own. It opens soon.

Have your chart read. Sometimes the fastest way to understand your own chart is to sit with someone who has read a few thousand of them and talk through yours out loud.

Learn to read for other people. The apprenticeship is a year, one to one, for people who want to do this properly — chart reading and how to build a practice around it. Beginners welcome; often my apprentices begin exactly where you are now, with one chart and a lot of questions.