Sensitive points, not planets
The nodes and Lilith are not objects you could photograph through a telescope – they are calculated points, places in space defined by geometry rather than rock or gas. That does not make them minor; astrologers have used the lunar nodes for over two thousand years, and both appear in a full modern chart. But it does change how to think about them: where a planet is a body with a position, these are intersections and extremes of orbits – the crossing points of two paths, or the far point of one. Their positions are exact astronomy; only their meaning is a matter of interpretation.
The lunar nodes: where paths cross
The two lunar nodes are the points where the Moon's orbit crosses the Sun's apparent path through the sky, the ecliptic. They are exactly this crossing that makes eclipses possible: a solar or lunar eclipse can only happen when a New or Full Moon falls near a node, which is why the nodes are sometimes called the eclipse points. The North Node and South Node always sit precisely opposite each other and drift slowly backwards through the zodiac, completing a full circuit in about 18.6 years and spending roughly eighteen months in each sign. Everyone your age shares your nodal sign, but its house and aspects are yours alone.
North Node and South Node meaning
Astrology reads the nodes as a single axis with two ends, describing a direction of growth. The South Node is the past – inherited gifts, old comfort zones, the things that come so easily they can become a rut; the qualities you are here to move beyond. The North Node is the future – unfamiliar territory that feels awkward but is exactly where growth lies; the direction the chart nudges you to stretch toward. Together they form the chart's most explicitly developmental story: release what the South Node over-relies on, and lean into what the North Node asks you to learn. In traditions that assume reincarnation, the South Node is read as talents carried from past lives and the North Node as this life's soul assignment – but you do not have to believe in past lives for the axis to be useful. Read plainly, it simply contrasts the default you fall back on under stress with the growth that feels uncomfortable precisely because it is new.
Rahu and Ketu: the dragon
In Indian astrology the nodes have names and a myth. The North Node is Rahu, the South Node Ketu, and together they are the celestial dragon – Rahu the Dragon's Head, Ketu the Dragon's Tail. The story: a demon, Svarbhanu, sneaked a taste of the gods' immortality nectar and was beheaded for it, but having drunk the nectar both halves lived on. The severed head became Rahu and the body Ketu, and the pair chase the Sun and Moon across the sky in revenge, swallowing them to cause eclipses. It is a vivid image for two points that genuinely govern where eclipses fall.
True node versus mean node
Because the Moon's orbit wobbles rather than tracing a perfect circle, the nodes can be calculated two ways. The mean node is a smoothed average, moving steadily backwards at a constant rate. The true (or osculating) node follows the real, oscillating position, which can even briefly appear to inch forwards before resuming its backward drift. The two are never far apart – usually within a degree or so – but they are not identical. AstraBrain computes the true node, the more astronomically exact of the two, so the position matches where the crossing actually is at your birth moment rather than an idealised average.
The nodal return and reversal
Because the nodes circle the chart in about 18.6 years, they produce their own life rhythm. The nodal return – the nodes coming back to their birth positions – lands near ages 18–19, 37 and 55–56, often felt as a turning point in one's sense of direction. Halfway between, near ages 9–10, 27–28 and 46, the nodes reach the reverse of their birth places (the nodal reversal), flipping the growth axis and frequently marking a pivot or a change of course. These are subtler than a Saturn return, but astrologers watch them as quiet markers of when the path itself shifts.
Black Moon Lilith: the lunar apogee
Black Moon Lilith is a different kind of point again. The Moon's orbit is an ellipse, so there is a near point (perigee) and a far point (apogee); Black Moon Lilith is that apogee – the spot where the Moon swings farthest from Earth. It drifts around the zodiac in about 8.85 years, roughly 40 degrees a year, returning to its birth place near ages 9, 18, 27, 36 and 44. As with the nodes it comes in mean and true versions; AstraBrain uses the mean apogee, the most widely used form of Lilith, giving the smoothed rather than the moment-to-moment position.
What Lilith means
Named after the figure of folklore who refused to submit, Black Moon Lilith is usually read as the raw, untamed and instinctive side of the self – the part that will not be domesticated, the desires and anger a person is taught to suppress, and where they refuse to compromise. It is often described as the wild or shadow feminine, though it applies to anyone. By sign and house it points to the arena where you feel most primal, most easily shamed, and most capable of reclaiming something you were told to hide. It is a point of power precisely where convention says there should be none. Because it comes in several calculated versions – mean and true Black Moon Lilith, and separately the asteroid Lilith and Dark Moon Lilith, which are different things entirely – you will sometimes see two "Liliths" in different degrees; the one meant here is the Black Moon, the lunar apogee. Read it by sign and house rather than as a verdict: it shows where the wild, uncompromising self lives, not whether that is good or bad.
How to read them
A word of proportion: the nodes and Lilith add nuance, not foundation. They are layered on top of the planets, signs, houses and aspects, and they mean the most when they touch something central – the North Node on your Sun, Lilith on your Venus, a node conjunct the Ascendant. Read your Sun, Moon and rising first, then the planets, then let these points colour in the story. Chasing them before the basics are clear is how beginners lose the thread. Used in their place, they add depth; used as headlines, they mislead. A practical order: establish the big three and the planets, notice any node or Lilith that lands on them, and only then read the axis and the apogee for the extra layer of story they genuinely add.
How AstraBrain computes them – honestly
AstraBrain calculates the true lunar nodes (Rahu and Ketu) and the mean Black Moon Lilith from the Swiss Ephemeris, placing each to the arc-minute for your date, time and place of birth. Those positions are exact astronomy – the crossing points and the apogee are real geometry, not guesswork. What they mean for you, though, is written by AI as symbolism: a mirror for reflection, offered as a language of growth and instinct rather than as science or prediction. The maths is precise; the story is yours to weigh and, if you like, to argue with.
Quick questions
What is my North Node? The sign and house it occupied at birth – read as the direction of growth you are here to stretch toward. • Is the South Node bad? No – it is your comfort and inherited gifts; the invitation is simply not to hide there. • Is Lilith a planet? No – it is the Moon's apogee, the far point of its orbit, a calculated point rather than a body. • Do the nodes cause eclipses? Eclipses happen when a New or Full Moon falls near a node, which is why the nodes are called the eclipse points.