A relationship has its own weather, separate from the weather of the two people in it. One partner can be in the middle of a demanding year at work and the other in a lighthearted one, while the relationship is quietly going through its own season: a year of building, a year of rearranging the furniture, a year of deciding where home is. Transits to the Davison chart are a way of reading that third weather.

A Davison chart is cast for the midpoint in time between two births and the midpoint in space between the two birthplaces. It is the chart of a moment that really happened, over a place that really exists. That is what makes these reports possible: a chart with a date and a horizon can be transited, exactly as a birth chart is.

Why the Davison and not the composite?

The site also has a relationship forecast built on the composite chart, and the difference is worth knowing before you use either. A composite averages two charts point by point. It has no moment of its own, and its houses are equal divisions measured from a midpoint Ascendant. Transits to it can still be read, but "Saturn is crossing the seventh house" means less when the seventh house is a construction.

The Davison has an Ascendant and a Midheaven that belonged to a real sky over a real place, so a transit crossing them is crossing something. The two charts also put the planets in different places, so the two forecasts are two readings of a couple, not one reading twice. Where they agree, the case is stronger. Where they differ, the Davison is usually nearer to the timing and the composite nearer to the feel.

One day: what the sky touches today

The day report reads one day of sky against the relationship chart. Today is the default, and you can choose any other date: the day you moved in together, or a day you are planning.

It lists every contact a transiting planet makes to a point of the Davison chart, closest first. Our orbs are deliberately tight: a degree and a half for the conjunction, square and opposition, one degree for the trine and sextile. The Moon counts only within one degree and only by hard aspect, because she crosses everything in the chart within a month. The main asteroids take part too, at even tighter orbs, and always after the planets. Contacts within a degree of exact are highlighted.

Read the tightest first, and then ask which planet is making it. The same aspect from Saturn and from the Moon are not the same event. Saturn on the relationship's Sun is a season, months long. The Moon on the same point is an afternoon: about the length of a disagreement over where the keys should live.

Below the list, the report shows where the planets are walking: every planet of the day and the house of the relationship chart it is passing through, including the ones that aspect nothing. A planet crossing a house is doing something there even without an aspect. The seventh house is the pair as a partnership; the fifth, what the two of you enjoy together; the fourth, the home you make of it.

The chart wheel puts the relationship chart inside and the sky of the chosen day outside, with a line for every contact in the list. And on some days nothing is within orb of the chart at all. The report says so rather than padding the table. That is not a bad day or a good one; it is a quiet one.

One month: the arc of each contact

A day is a snapshot. The contacts that matter most come from the slow planets, and they apply, become exact and separate over weeks or months, so a single day can only say that one is in orb. The month report shows the whole arc.

For each contact it gives the day it begins, the day it is exact or closest, and the day it fades. A contact marked applying is building, the planet moving towards the exact aspect; one marked separating is letting go. A contact that was already in orb on the first of the month, or is still in orb at the end, is marked so you know it started before or continues after.

The month uses the same tight orbs as the day, with one difference: the transiting Moon is left out, because in a month she makes a hard aspect to every point of the chart, often twice, and those contacts would drown the ones that last. The contacts are ranked by weight rather than by orb: the slow planets first, contacts to the angles, the Sun and the Moon of the chart before the rest, and a contact that becomes exact this month before one that does not.

Read the slow contacts first. A Saturn, Uranus, Neptune or Pluto contact to the Davison chart is a season the relationship is living through, and the month sits inside it. Pluto on the Davison Moon might be a long season in which the way the two of you look after each other changes at the root. The faster planets, the Sun, Mercury, Venus and Mars, give the dated moments inside that backdrop: Venus crossing the Davison Ascendant is a few days when the pair look especially good together, possibly in photographs taken by other people.

Then come two things a day cannot show. A day by day calendar marks the days that stand out: a contact at its exact or closest point, a planet turning retrograde or direct, a planet moving into another house of the relationship chart. And a table of where the planets walk this month gives each planet on the first and the last day, the houses it passes through, and the day it changes house. A planet changing house mid-month changes what the month is about.

You can choose the month, from three months back to a year ahead. The report also draws the sky at the middle of the month against the Davison chart.

AI readings

Both reports have a button that asks the AI astrologer to read the whole period. For a day, it says what is crossing the chart of the two of you and what is only passing. For a month, it describes the season the two of you are in and the days inside it that stand out. Once written, the reading is kept for you.

Birth times

Both birth times matter, for the usual reason. With both known, the Davison has genuine houses and angles and the reports read them. With one unknown, the chart is cast for noon on that side, the angles are guesses, and the reports leave the houses out rather than printing ones they do not believe. You still get the aspects to the chart's planets, which is most of the weather.

Weather, not a verdict

Transits describe what a period is asking of two people. They do not decide anything. A hard transit is not a warning, and an easy one is not a promise. A couple who know they are in a Saturn season can plan for one, which is more useful than being surprised by it.

When you are ready, read the transits to your Davison chart for any day, or follow a whole month on it.

Frequently asked questions

What are transits to a Davison chart?
The aspects the moving planets make to the chart of a relationship, rather than to either partner's own chart. Because a Davison is a real moment over a real place, those aspects land on genuine houses and angles.

How is this different from the relationship forecast?
The relationship forecast transits the composite, an average of two charts with no sky of its own and equal houses from a midpoint Ascendant. The Davison is a chart of a moment, so its houses and angles are real. The two charts also put the planets in different places, so they are two readings rather than one repeated.

Should I read the day or the month?
The month for the shape of a period: when the slow contacts arrive, peak and leave. The day for what is happening today, including the Moon, which the month leaves out.

Do we both need a known birth time?
For the aspects to the chart's planets, no. For the houses and the angles, yes, and those are the main reason to transit a Davison rather than a composite. An error in either birth time moves the midpoint by half of it, which is still enough to shift the Ascendant by a few degrees.

Nothing shows for our day, or nothing slow touches our month. Is something wrong?
No. The orbs are tight on purpose, so some days are quiet and some months are carried by the faster planets alone. The houses the planets are walking through still say where the attention is.