South Node Calculator
Find your South Node zodiac sign free, from your birth date.
This free South Node calculator finds your South Node sign from your birth details. The South Node is one of the two lunar nodes, the points where the Moon crosses the ecliptic. It is also called the Descending Node, and in Vedic astrology it is known as Ketu.
Your South Node always sits exactly 180 degrees from your North Node, so the two form a single nodal axis. That is why finding one immediately gives you the other, and why the calculator above reports both.
What Does the South Node Mean in Astrology?
The South Node is usually read as the familiar end of the nodal axis. It describes tendencies, skills and instincts that already feel natural to you, often to the point of being automatic. Astrologers frequently describe it as your comfort zone or your default setting under stress.
The important nuance is that the South Node is not a fault to be removed. It represents genuine ability. The difficulty is only that leaning on it exclusively can keep you from developing the unfamiliar qualities of your North Node. Most nodal interpretation is about balance between the two ends of the axis rather than rejecting one of them.
South Node in Every Zodiac Sign
Each South Node sign points to a different set of established strengths and a different habit that can become limiting.
South Node in Aries
Self-reliance, directness and independent action. The familiar pattern is going it alone and reacting fast, sometimes before others are included.
South Node in Taurus
Steadiness, patience and attachment to comfort. The familiar pattern is staying with what is safe and resisting necessary change.
South Node in Gemini
Quick thinking, information gathering and versatility. The familiar pattern is collecting facts and opinions without settling on a view.
South Node in Cancer
Emotional sensitivity, caretaking and closeness to home. The familiar pattern is retreating into safety or dependence.
South Node in Leo
Creative confidence and personal visibility. The familiar pattern is needing recognition and keeping attention on yourself.
South Node in Virgo
Analysis, precision and practical service. The familiar pattern is over correcting, worrying and criticising the detail.
South Node in Libra
Diplomacy, fairness and awareness of others. The familiar pattern is accommodating people and avoiding conflict at your own cost.
South Node in Scorpio
Emotional intensity, depth and resilience under pressure. The familiar pattern is control, suspicion and crisis as a default setting.
South Node in Sagittarius
Conviction, optimism and a broad worldview. The familiar pattern is preaching beliefs rather than listening.
South Node in Capricorn
Discipline, responsibility and achievement. The familiar pattern is duty, status and work standing in for feeling.
South Node in Aquarius
Independence, objectivity and group thinking. The familiar pattern is detachment and staying in the crowd.
South Node in Pisces
Compassion, imagination and acceptance. The familiar pattern is drift, escape and avoiding practical structure.
South Node and North Node Axis Table
The nodes are always opposite. Use this table to read across from your South Node sign to the growth direction it pairs with.
| South Node | North Node |
|---|---|
| Aries | Libra |
| Taurus | Scorpio |
| Gemini | Sagittarius |
| Cancer | Capricorn |
| Leo | Aquarius |
| Virgo | Pisces |
| Libra | Aries |
| Scorpio | Taurus |
| Sagittarius | Gemini |
| Capricorn | Cancer |
| Aquarius | Leo |
| Pisces | Virgo |
South Node House Placement
Your South Node house shows the area of life where those familiar patterns tend to play out. It is always opposite your North Node house, so the pairs are fixed: 1st with 7th, 2nd with 8th, 3rd with 9th, 4th with 10th, 5th with 11th, and 6th with 12th.
House placement cannot be worked out from the sign alone. It needs a complete birth chart with an accurate birth time and birthplace. You can read the full house breakdown on our North Node House Calculator page.
South Node vs Ketu: Are They the Same?
Yes, in the sense that both names refer to the descending lunar node. Western astrology calls it the South Node or Descending Node. Vedic astrology calls it Ketu and treats it as a shadow point paired with Rahu, the North Node. The astronomical point is identical; the interpretive frameworks built on top of it differ.
True Node vs Mean Node for the South Node
Calculators can use two methods. True Node accounts for the node moving at a varying rate, while Mean Node smooths that motion into an average. They usually land in the same sign, and the difference only becomes important when your placement is near 0 or 29 degrees of a sign. The calculator above shows both so you can see immediately whether your birth date is one of the ambiguous ones.
Frequently Asked Questions
What is a South Node Calculator?
A South Node Calculator is a free tool that works out the zodiac sign of your lunar South Node from your birth date. Because the South Node always sits exactly opposite the North Node, the calculator finds the nodal axis and reports the descending end of it.
How do I find my South Node sign?
Enter your birth date in the calculator above and press Calculate South Node. Adding your birth time improves precision, which matters most if you were born close to a sign change.
Is the South Node the same as Ketu?
In Vedic astrology the South Node is called Ketu and the North Node is called Rahu. They refer to the same two lunar nodes, although the interpretive traditions around them differ.
Is the South Node bad?
No. The South Node describes real ability built up over time. It only becomes limiting when you lean on it to avoid the unfamiliar growth that the North Node points toward.
What is the difference between True Node and Mean Node?
True Node accounts for the node’s varying motion, while Mean Node uses an averaged motion. They usually agree, but can differ near a sign boundary. This calculator shows both.
Can my South Node change?
Your natal South Node never changes. The transiting nodes keep moving through the zodiac, but that is separate from your birth placement.
Do I need my birth time for the South Node?
Not for the sign in most cases, because the nodes move slowly. Birth time and birthplace become essential if you want the South Node house or the exact degree.
What house is my South Node in?
House placement needs a full birth chart with time and location. Your South Node house is always opposite your North Node house, so the 1st and 7th, 2nd and 8th, and so on, always pair up.
Next Step: Check Your North Node
Your South Node only tells half the story. The other half is the growth direction opposite it. Run the free North Node Calculator, then compare the two ends of your nodal axis.