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Astrology · Lunar Node

South Node
sign calculator

The South Node is not a planet but a calculated point: where the Moon's orbit crosses the ecliptic going down — directly opposite the North Node. Astrologically it shows what has felt familiar from the start: gifts and patterns you slip into effortlessly because they feel "like home". They are your comfort zone — and for that very reason the habit you are here to grow beyond. Your direction of growth sits in the opposite sign, the North Node.

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Only your birth date is needed — no time required.

How it works

Three steps to your South Node

  1. Enter your birth data

    Your birth date is enough. You only need a time for the house.

  2. Calculate the position

    We use the Swiss Ephemeris engine — the same calculation base professional astrology software runs on. Arc-second accuracy, free.

  3. Read the interpretation

    You instantly see your sign — plus a clear explanation of what it says about you, and a link to the matching interpretation.

The basics

What the South Node means

Your familiar pattern

The South Node isn’t a planet but a point on the lunar node axis. It shows what has come easily to you from birth: gifts and habits you fall back into automatically, especially under stress. It’s your comfort zone — familiar, but sometimes a little too comfortable.

Why the North Node completes it

The nodes are an axis — you can’t read one without the other. Directly opposite the South Node sits the North Node, your direction of growth. What’s easy but exhausted at the South Node asks for the courage to try something new at the North Node. Not fate, but a compass: where it’s worth growing in this lifetime.

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South Node — frequently asked questions

Do I need my birth time for the South Node?
No. The South Node stays in one sign for about 1.5 years — your birth date alone pins the right sign.
What is the difference between the South and North Node?
The two lunar nodes sit directly opposite each other. The South Node shows what is familiar — innate talents and patterns you slip back into effortlessly. The North Node in the opposite sign shows your path of growth: what feels unfamiliar but moves you forward.
How is the South Node calculated?
The South Node is not a celestial body but a calculated point: the descending crossing of the Moon's orbit and the ecliptic. It moves retrograde at about 0.05° per day and stays in one sign for roughly 1.5 years. We compute it with Swiss-Ephemeris accuracy from your birth date.
Is the South Node calculator free?
Yes. The calculator is completely free and needs no sign-up. We only ask for your email when you want to connect the result to your full birth chart.
Katie RobinsonReviewed by Katie Robinson · Astrologer & Tarot Reader

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