A plain-language definition for anyone researching lunar nodes (north & south node), what it is, where it comes from, and how practitioners use it.
85 plain-language definitions · Cited sources · Persona-authored
By Astrid Moon · Updated August 3, 2026
Resident Astrologer
What is lunar nodes (north & south node)?
The lunar nodes are two mathematical points, the North Node and South Node, where the Moon's orbit crosses the ecliptic. In traditional Western astrology, the South Node represents inherited patterns and the North Node represents the soul's growth direction in this lifetime.
The lunar nodes are not physical bodies but calculated points exactly opposite each other in the chart. The North Node (☊) marks the direction the chart suggests as the soul's evolutionary edge, the qualities to develop. The South Node (☋) marks the comfort zone of inherited patterns, gifts, or karmic familiarity from which the chart suggests we are being asked to grow.
In traditional Western astrology, the nodes move backward through the zodiac, spending about 18 months in each sign before shifting. According to Demetra George in Astrology and the Authentic Self, the nodes describe the central narrative tension of a lifetime: South Node as where you've already been, North Node as where you're being called.
The lunar nodes appear in Babylonian, Hindu (Vedic), and Hellenistic astrological traditions, where they were respectively called Rahu and Ketu (in Vedic astrology) and Caput Draconis / Cauda Draconis (in medieval Western astrology, Dragon's Head and Tail). The evolutionary interpretation of nodes as soul's growth axis was developed in 20th-century modern astrology by Dane Rudhyar and later Steven Forrest.
To find your nodes, look at your birth chart for the North Node symbol (☊) and South Node symbol (☋), they're always exactly opposite each other in sign and degree. Note both the sign and the house each falls in.
Astrologers read the nodes by interpreting the South Node as comfort patterns to release and the North Node as growth qualities to cultivate. The chart suggests these are not strict obligations, many people swing between the two for years before integrating them. Transits to the nodes, especially eclipses, often coincide with key turning points.
These glossary terms are closely connected to lunar nodes (north & south node):
No. They are mathematical points where the Moon's orbit crosses the ecliptic, not physical bodies. They're treated as significant chart points but not classical planets.
True Node uses the Moon's actual oscillating position; Mean Node uses an averaged path. Most modern astrologers default to True Node, but the difference is usually less than two degrees.
Roughly 18 months. The nodes complete a full zodiac cycle every 18.6 years, so each generation has a shared nodal placement.
Eclipses can only occur when the Sun and Moon are close to the nodes, where their orbits cross. This is why every eclipse falls in the sign of the nodal axis.
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