Composite Chart Calculator

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Person A — Birth DatePerson B — Birth Date

Composite Midpoint Positions

☉ Sun♊23°Gem♓29°Pis♉11°Taurus

☽ Moon♓15°Pis♏7°Sco♑11°Capricorn

☿ Mercury♈20°Ari♌23°Leo♊22°Gemini

♀ Venus♓24°Pis♒9°Aqu♓2°Pisces

♂ Mars♒27°Aqu♒6°Aqu♒17°Aquarius

♃ Jupiter♋14°Can♍8°Vir♌11°Leo

♄ Saturn♑23°Cap♒15°Aqu♒4°Aquarius

Person APerson BComposite

Note: Uses simplified mean longitude formulas. Birth time and location affect the Moon and Ascendant significantly. For serious synastry/composite work, use Astro.com or similar with precise birth data.

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What is Composite Chart Calculator?

Composite Chart Calculator creates a composite relationship chart by calculating midpoints between two people’s planetary positions to represent the dynamics of their partnership.