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North Node calculator

Your North Node sign is the sign the Moon’s ascending node was in on the day you were born. It spends about eighteen months in each sign, so your birth date is nearly always enough. You get your North Node, your South Node and what the pair points to.

Find your North Node

Date of birth · time and city only if needed
The date is enough on almost every day. Add the time and city if your birthday falls on a sign change.
  • North Node sign & degreeThe sign of the mean lunar node when you were born, to the degree.
  • South NodeThe sign opposite, which astrologers read as the familiar ground you grow away from.
  • Sign-change checkIf the node changed sign on your birthday we say so, with the moment, instead of guessing.
  • What it meansA short reading of your North Node sign.

This free calculator finds your North Node sign, and the South Node opposite it, from your date of birth, with no sign-up. The node spends about eighteen months in a sign, so your birth time and city are needed only if it changed sign on your birthday. We use the mean node, the standard in most astrology software.

· How we calculate

How it’s calculated

The lunar nodes are the two points where the Moon’s orbit crosses the Sun’s path across the sky, the ecliptic. The North Node is where the Moon climbs north of it. The nodes move backwards through the zodiac, taking 18.6 years for the full circle.

We calculate the mean node with the standard series in Jean Meeus, Astronomical Algorithms (chapter 47). The true node wobbles up to about 1.5° either side of it, and most astrologers and most software use the mean node by default, so we do too.

To decide whether the date alone is enough, we check every hour of your birth date in every time zone on Earth, from UTC−12 to UTC+14. If the node changed sign in that window, you see both signs and the moment of the change, and the time and city settle it.

North Node in the twelve signs

A short reading for each sign. Find yours above, or read across for a friend.

North Node in Aries

You grow by acting on what you want, deciding without a vote and tolerating a little conflict. The South Node in Libra is the habit of waiting for others to choose first.

North Node in Taurus

You grow toward steadiness: your own values, your body, slow pleasures and money you build yourself. The South Node in Scorpio pulls toward crisis and intensity.

North Node in Gemini

You grow by staying curious: asking questions, listening, learning something new and talking plainly. The South Node in Sagittarius is the pull to already know the answer.

North Node in Cancer

You grow by letting yourself need people, building a home and caring for others openly. The South Node in Capricorn is the habit of managing everything alone.

North Node in Leo

You grow by putting your heart into things, creating and letting yourself be seen. The South Node in Aquarius is the comfort of staying in the crowd and out of the spotlight.

North Node in Virgo

You grow through practical work: routines, details, health and being useful. The South Node in Pisces is the habit of drifting, avoiding and waiting to be rescued.

North Node in Libra

You grow in partnership: compromise, fairness and sharing the decisions. The South Node in Aries is the habit of doing it all alone and calling that independence.

North Node in Scorpio

You grow by trusting deeply, sharing resources and letting old things end. The South Node in Taurus is the grip on comfort, possessions and how things have always been.

North Node in Sagittarius

You grow by asking what it all means: travel, study, belief and a bigger picture. The South Node in Gemini is the habit of collecting facts without choosing a view.

North Node in Capricorn

You grow by taking responsibility, setting long goals and working toward them. The South Node in Cancer is the pull of the comfort zone and of being looked after.

North Node in Aquarius

You grow by working with groups, sharing ideas and being yourself among people. The South Node in Leo is the need for applause and for being the centre.

North Node in Pisces

You grow by trusting, forgiving and making room for imagination and rest. The South Node in Virgo is the habit of analysing, fixing and worrying over every detail.

Questions

Asked often

What does my North Node sign mean?

In Western astrology the North Node points to what you are growing toward: the qualities that feel unfamiliar at first and become more rewarding the more you practise them. It is read as direction rather than as a trait you already have.

What is the South Node?

It is always in the sign opposite the North Node. Astrologers read it as what comes easily and is overused: the habits and strengths you already have and can lean on too much.

Mean node or true node?

The mean node moves smoothly backwards. The true node follows the Moon’s actual orbit and swings around the mean one by up to about 1.5°. The two share a sign almost always, and differ only when the node is within a degree or two of a sign boundary.

Do I need my birth time?

Almost never. The node changes sign about every eighteen months, so only a few birth dates a year are close to a change. The calculator tells you when yours is one of them.

How often does the North Node change sign?

Roughly every eighteen months, moving backwards through the zodiac, for example from Aries to Pisces. It returns to the same sign every 18.6 years, which is the nodal cycle eclipse astrologers follow.

Go further

Your node, in context

The natal chart book reads your nodes with the rest of your chart: planets, houses and aspects. Seen with your Sun, Moon and Rising sign, the North Node makes more sense.

Natal chart book · $24.99Chart poster · $7.99

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