Astrology ancestry: the patterns that repeat in a family’s charts

One family, one tree

Everything starts with a tree. You add relatives with whatever birth data you have: a date alone places the Sun, the planets from Mercury to Pluto and the lunar nodes; a time adds the Moon, the Ascendant, the Midheaven and the IC. The tree keeps the two parental lines apart and routes them the way a family tree does, so the engine compares charts only between people who share descent — a maternal grandmother and a paternal uncle are never scored as a pair. That restriction is deliberate. An aspect between two in-laws is real geometry, but it is not ancestry, and counting it would inflate every statistic on the page.

Missing data is handled honestly rather than guessed. A relative without a birth time still contributes their confirmed points, while their Moon is shown faded and marked as needing a time, because a chart computed at noon can put the Moon anywhere within about seven degrees of where it really was. Their angles are hidden altogether: an Ascendant turns through the whole zodiac in a day, so a noon value would be arbitrary. Nothing speculative is ever counted in a statistic, a cluster or a theme — it is shown so you can see what a birth time would add, and left out of every number.

What repeats, and how often it would repeat anyway

The Patterns view looks for the classic lineage signals. It counts recurring signs on the seven points astrologers read for ancestry — the Sun, the Moon, Saturn, the IC, the Ascendant, the Midheaven and the North Node — and recurring emphasis on the fourth, eighth and twelfth houses: home and origin, inheritance, and what is carried unseen. Each recurrence is scored with a binomial test against the chance rate, so the page can say that Cancer sits on the Moon in three of seven relatives and how far that beats coincidence. A ‘notable’ tag means the odds cleared a stated threshold, not that a pattern felt striking.

Cross-chart aspects are computed within a five-degree orb by default, and the orb is a slider rather than a constant: narrow it and every count, theme and finding recomputes from the tighter set. An ‘ancestral focus’ switch drops Mercury, Venus and Mars from the whole analysis for readers who do not use the fast personal planets in lineage work. The dataset is one thing, viewed several ways, and each view says which settings produced it.

From geometry to a family’s themes

Raw recurrences are evidence; the Overview turns them into a reading you can argue with. Themes are scored by combining all of their evidence — every confirmed cross-chart aspect between relatives, weighted by how close to exact it is, and every recurring sign that beats chance, weighted by how much — so the family’s strongest theme reads at five stars and the rest scale in proportion to it. Archetypes ask a narrower question: which planet does the most work in this family’s network, measured against an even spread of the aspects that actually exist rather than against a textbook expectation.

Every finding opens. Click a recurring placement and the Focus panel shows the question restated, the verdict with its numbers, the exact rows of evidence that produced it, the relatives involved, and the caveats — including how many charts lacked a birth time. A number on a card and the same number inside its answer come from one analysis, so they cannot disagree.

Where the family’s past meets your present

Discovery is the part that needs your own record. It matches the complete signature of a transit you have noted in your Notebook — the transiting planet, the aspect, and the natal point it contacts — against dated life events in your family’s history, and reports full matches only. A Saturn square to the Sun that you logged this spring, echoing the same contact under which a grandparent changed countries, is the kind of resonance it looks for. A match on the planet alone is not reported, because it would match almost everything.

What it does not do

Ancestry does not tell you what your family means, and it does not forecast what an inherited placement does in your life. It counts, dates and shows its evidence, and it says how often the same pattern would appear in a family drawn at random. The interpretation stays yours; the instrument’s job is to make sure the pattern you are interpreting is actually there.

Trying it

The surface opens on a sample family, so every tool can be explored without an account or any data of your own. Exploring that family — its tree, its overview and its themes — is free. Building your own tree, adding and editing relatives, is part of Pro, as are the Patterns statistics and Discovery.