Compatibility
Two birth dates, two charts, and the measured angles between them. Not "you are both Leo" — one chart’s Venus to the other chart’s Mars, with the orb to a tenth of a degree. Free, no sign-up.
·What is actually computed
- Two full chartsTen bodies each, with signs, degrees and retrograde state. Ascendant and houses wherever the birth time is known. Both are computed by the same code that computes one on the reading page.
- Angles between the chartsConjunctions, sextiles, squares, trines, oppositions and quincunxes from a body in one chart to a body in the other, with orbs. These angles exist in neither chart alone — they appear only because there are two.
- Direction mattersYour Venus to their Mars and their Venus to your Mars are different contacts. They are listed separately, not collapsed into one line.
- Generations left outAngles between two outer planets are deliberately not shown: people born a few years apart share them with everyone else their age. They can be computed; they cannot say anything about this pair.
- No percentagesThere is no compatibility score here and there will not be one. No such number exists, and an invented number is exactly the fake precision this site was built to refuse.
·Questions
How is this different from sign compatibility?
A sign is a thirty-degree arc, one twelfth of the sky. Two "Leos" can sit at 2° and at 29° — twenty-seven degrees apart, with entirely different contacts to a third chart. What is computed here is the degrees, not the name of the arc.
Does the other person have to agree?
Technically no: a birth date is enough. But the text is written to read the pair, not to pass a verdict on someone who is not here. You will not get an assessment of their character, a guess at their feelings, or advice on how to influence them.
What if I don't know their birth time?
Then their chart is computed without an ascendant, midheaven or houses, and contacts to those points are simply absent — not weak, absent. The rest of a chart barely depends on the hour, so the reading still works.
What does it cost?
One of your three readings, the same as any other. No money so far.
Will there be a number for how well we match?
No. A square is not "bad" and a trine is not "good": the first is friction with a direction, the second is ease nobody had to earn. Reducing that to a score would throw away the thing it was computed for.
Next — a reading of your own chart · how to read the sky · glossary of terms