Your birth chart, computed at home.

Nowhere. The whole calculation happens in your browser: your date, your time and your place leave for no server, are written into no cookie, and are kept only if you tick “save this chart on this device” yourself. You can check it without taking our word for it: open your browser’s developer tools, Network tab, then run the calculation. The counter at the bottom of this page takes the same measurement and shows the result live.

It is the same reference engine, checked automatically against the documents we sell. The gap with a document never exceeds one arc minute. On Neptune, which moves very slowly, the last minute shown can differ by one unit in roughly one chart out of six: two different astronomical models sometimes land on either side of a rounding. The sign, the house and the aspects are identical.

The Earth turns: the Ascendant moves about one degree every four minutes. Without the time there is no Ascendant, no Midheaven and no houses — that is, neither the “how it comes through” nor the “in which area of life”. The planets in signs and their aspects stay accurate. If you do not know your time, tick the box: the page tells you exactly what remains reliable, and what it refuses to invent.

Signs give the color of an energy; houses give the area of life where it plays out — work, partnership, home, money, friendship. The same Venus in Taurus does not tell the same story in house II as in house X. That is why the time matters, and why an isolated placement means almost nothing.

Because it is true, and better said before you find out. This page is a dictionary: it gives one word per box. It cannot do otherwise, it does not know who you are. A reading crosses everything — the planets with one another, the houses, the aspects, the cycles under way — and it is that crossing which produces a sentence that is true about you, rather than a definition valid for one twelfth of humanity.