Uranian Synastry Chart: Two Charts on the 90° Dial

This report compares two birth charts using the methods of the Hamburg School. It works with midpoints, symmetry and the 90° dial, and it leaves signs, houses and rulerships out of the picture. What it looks for is structure: the points where one person’s factors land on the other’s, and the midpoints that quietly tie the two charts together. Twenty-two factors are used for each person, including the eight hypothetical planets, and every contact the report finds is explained in writing.

How the two charts are compared

Every midpoint in this report is taken inside one person’s own chart. Nothing is averaged between you, so each chart keeps its own geometry. The meeting happens on the dial, where one person’s factor is set on the pointer and the other person’s factors are read against it. A pair of factors sitting the same distance either side of that pointer is the contact, and the closer those two distances match, the tighter it is.

That distinction has a practical consequence. A composite chart blends two charts into a third one, and the result describes the relationship as a single object. This report keeps the two charts separate, which is what lets the reading say who brings what. Your Saturn arriving on your partner’s Sun and Moon midpoint is a different event from their Saturn arriving on yours, and both directions are scanned and reported on their own.

Why the dial folds the circle

A 90° dial takes the 360° circle and folds it into four. Everything that sits at 0°, 90°, 180° or 270° from a given point arrives at the same place on the dial, which is why conjunction, square and opposition are read as one contact here. Folding this way makes symmetry visible at a glance, and it is the reason a Uranian reading can work with tight orbs and still find a great deal in a chart pair.

The orbs in this report are deliberately narrow. A contact has to be within one degree of exact to be reported at all, and the list is ordered so the closest ones come first. A contact at two minutes of arc is doing something you can recognise in the relationship. A contact at three degrees is background, and it is left out.

What the report contains

Six sections, each reading the same two charts through a different lens.

• Uranian Synastry Chart: both charts on one 360° wheel with all twenty-two factors for each person, a 90° dial view with a switch for whose factor sits on the pointer, and the full cross-chart contact table as data.
• Core Connections: the aspects between the two charts, interpreted one by one. On a folded dial the seven aspect names reduce to three separations, so the vocabulary here is conjunction, octile and semisquare.
• Personal Axes: the tightest axes the two of you share, read one at a time. Your own axes come first, showing what your partner brings to them, and your partner’s axes follow, showing what you bring to theirs. Each section carries its own dial showing only the factors that section discusses.
• Planetary Pictures: cross-chart pictures written A = B / C, where the midpoint belongs to one chart and the body landing on it belongs to the other. Both directions are reported separately.
• Relationship Houses: Uranian astrology uses six house frames, each measured in equal thirty degree segments from a different personal point. The same placement answers a different question in each frame, and this section sets them out in a table you can switch between.
• Love & Partnership: the reflex houses, where houses that add to thirteen work as pairs. The fifth and the eighth, the sixth and the seventh, the fourth and the ninth. This is the section that reads love, commitment, what gets shared and what the partnership asks of each of you, with a house wheel for every frame involved.

The report closes with a synthesis that looks across all six. A theme appears there only when at least two independent methods point at it, and each theme names the methods that agree, so you can check any claim against the section it came from.

The eight hypothetical planets

Cupido, Hades, Zeus, Kronos, Apollon, Admetos, Vulkanus and Poseidon are the transneptunian factors the Hamburg School added to the familiar bodies. They are symbolic points with no physical body behind them, and they are central to this technique, since a great deal of the symmetry a Uranian reading depends on involves them. In a relationship reading they carry the material the standard planets leave unsaid: Cupido for family and the joined household, Hades for what is old or buried, Zeus for directed drive, Kronos for authority, Apollon for expansion, Admetos for what will not move, Vulkanus for force, and Poseidon for insight and idealisation. They appear on both wheels, in the contacts, and in the planetary pictures.

What you need

Birth date, time and place for both people, and the birth times need to be known. The Ascendant and the Meridian are two of the twenty-two factors this report reads, and both move about a degree every four minutes, so an hour of uncertainty shifts them roughly fifteen degrees. They also anchor two of the six house frames. A chart with no recorded time cannot supply them, and the report would have to invent them, which is why this calculator asks for a time for both people. If either time is uncertain, the birth time rectification tool can help you narrow it down first.

Who this report suits

It suits anyone who has already read a standard synastry report and wants the layer underneath it. Sign and house comparison answers how two people relate in everyday terms. This answers where the two structures actually touch, which is often the more specific question, and it frequently explains a dynamic that a conventional reading gestures at without naming. Some familiarity with midpoints helps, though every contact here is explained in plain language, so prior knowledge of the technique is optional.

Related readings

For the house and aspect comparison of the same two charts, use the Synastry Chart Calculator. For one chart on its own with the full midpoint and planetary picture analysis, use the Uranian Chart Calculator. For the karmic layer, see the Draconic Synastry Chart. For the relationship as a single blended chart, see the Composite and Davison Chart.

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