Synastry and Composite Charts

Relationship astrology for couples, families and groups: composite and comparison charts, synastry aspects, group transits and synastry maps.

With the synastry tools you can compare two or more charts. You can calculate seven types of relationship chart, see the aspects and distances between two charts in a table or on the wheel, view up to five charts in the multiwheel, and any number of charts side by side. You can follow a whole group of charts in a single Transits Calendar or on the AstroCartoGraphy map. As for the Vedic matchmaking, you can use Vedic compatibility tools including Ashtakoota, Cross-chart aspects and Sambandh.

Relationship Charts

For couples, you can calculate seven types of synastry charts. Composite charts can include more than two people:

Bi-wheels and multiwheels of up to five charts
Derived composite
Midpoint composite
Davison average chart
Davison corrected chart
Coalescent chart
Generalized Planetary Hours synastry chart

You can use composite or synastry charts just like any other chart, with the chart details tools, forecast tools, the AstroCartography maps, and with the interpretation reports.

A bi-wheel with one chart in the inner ring and the partner's chart in the outer ring — A bi-wheel

Synastry Aspects and Distances

The synastry aspects table lists every aspect between the planets of two charts, along with its orb and the distance between the two points. You can also see the same aspects on a bi-wheel or in a separate synastry wheel. For the Generalized Planetary Hours System, the table shows the aspects and hour distances between the two charts.

Synastry aspects drawn between the planets of two charts on one wheel — Synastry aspects in a wheel

A synastry chart of two people in the Western chart style with the cross-aspects — A synastry chart in the Western style

Bi-Wheels, Quad-Wheels and Many Wheels

You can show any of your open charts in bi-wheels, a tri-wheel or a quad-wheel, up to five charts in a single wheel. Multiwheels can be anchored to any house of any chart. Multiwheels can also be drawn using traditional Tropical Zodiac, 13 Signs Zodiac, using Arabic Lunar Mansions and Vedic Nakshatras. Many Wheels feature shows any number of charts side by side. For book publishing work, a special black and white multiwheel style is included.

Transits for a Group of Charts

You can create a combined transit calendar for several charts at once and follow a family, a class or a group of clients month by month. The Calendar is interactive: you can move from month to month, add your own events. You can also print-preview and print the Astro Calendar and export it to PDF and HTML.

A month calendar with the transits of several charts listed on each day — A transit calendar for several charts

The print preview of a transit calendar — The calendar in print preview

Synastry Maps

With a Map Theme Editor you can specify themes or subsets of planets to use and then combine any number of charts on a single AstroCartography, Local Space or Geodetic map. You can learn more about Map Themes in AstroCartoGraphy and Astro Maps.

An astrocartography map with the lines of two charts drawn together through a synastry map theme — A synastry map theme

Frequently Asked Questions

Which composite charts can I calculate?

The derived and midpoint composites, the Davison average and corrected charts, and the coalescent chart. The bi-wheel and the Generalized Planetary Hours synastry chart are included too.

Can a composite include more than two people?

Yes. You can calculate a composite chart from any number of charts.

How many charts can I show in a multiwheel?

Up to five. With Many Wheels you can show any number of charts side by side.

Can I see transits for several people at once?

Yes. The Group Transits Calendar lists transits for every chart in a group and breaks them down by time periods. The Group Transits Calendar can be exported to PDF.

Is there a synastry interpretation report?

Yes, the Synastry and Sexual compatibility report written by Bob Makransky. You can also write your own reports using our Interpretation Editor.