UmbrielAstrology

House overlays in synastry

MODERNA modern technique: twentieth-century astrology.

A house overlay is where one person’s planets fall in the other person’s chart. It is the half of synastry that says which part of a life somebody walks into, and it is the half most people find they recognise immediately.

It is also directional, and that is the thing most often lost. Their Mars in your 7th house is not the same reading as your Mars in their 7th, so both are computed and both are written up separately here. There is a page for each of the twelve houses.

Reading order matters too. A contact lands on a chart that already had something in it, so the honest sequence is your chart, then theirs, then what happens between them. The same Saturn contact is a different experience for somebody whose own Saturn is already busy.

The twelve houses

✦ Compare two charts: free

Both directions, the contacts and their orbs, the bi-wheel, and your two natal moon phases side by side. No account, no email, in your browser.

320+ people cast their chart here in the last 30 days.

Twin flame astrology

The same machinery answers the question people actually arrive with, and it answers it honestly rather than with a yes. There is no accepted astrological threshold where one category becomes another, and no chart can establish that two people are twin flames. What two charts can show is the shape of a connection, which is a different and more checkable question.

Twin flame astrology: what two charts can and cannot show

Go deeper

The free synastry calculator · What the twelve houses mean in your own chart · Compatibility, sign by sign · The aspects