Create a Composite Chart
To create your free synastry chart enter two names, places of birth (or nearest city), and dates of birth below. Entering a birth time is optional, but including it will provide a more accurate birth chart. When a time isn't provided, the time defaults to noon.
What is a composite chart?
Imagine overlaying two birth charts over one another then finding both their individual suns, and placing a new sun in between them - that is essentially how composite charts are determined. In more formal terms, composite charts are determined by calculating the midpoint between both people's planetary positions and creating an entirely new chart with the new planetary position and aspect.
Composite charts and synastry charts are similar in that they both explore relationships. However, composite charts differs in that it creates an entirely new chart out of two individual’s charts. A composite chart is looking at the two individuals as a unit - as a whole. Thus why, visually it looks exactly like a birth chart as it only has one set of elements.
What’s in an Astro-Chart's chart?
Modern & accurate
Astro-Charts was created to usher in fresh and fun energy to astrology on the internet. Our composite charts balance a modern look combined with up-to-date and accurate data from planetary databases created by NASA. We do all the calculations for your composite charts and handle daylight savings and other nuanced location situations.
Save unlimited charts
Save all your birth, synastry, and composite charts on Astro-Charts for free. Easily access all your saved charts and never worry about running out of space.
Customize your chart
We give you the power to customize your composite chart to your liking: custom orb limits, multiple house systems, sidereal calculation, declinations, show/hide any planet, asteroids, or aspect. We also are open to suggestion for more features that you may find useful.