What Is Synastry in Astrology?
Also known as: Relationship Astrology, Chart Comparison
Quick Definition
The astrological practice of comparing two birth charts to assess relationship compatibility.
Synastry: In-Depth Explanation
Synastry involves overlaying two people's natal charts to see how their planets interact. When one person's Venus conjuncts another's Mars, for example, there's likely strong physical attraction. Harmonious aspects (trines, sextiles) between charts suggest ease, while challenging aspects (squares, oppositions) indicate areas of growth and tension. Synastry goes far beyond sun sign compatibility — it reveals the specific dynamics, attractions, and challenges unique to any two people.
Related Astrology Terms
Natal Chart
A map of exactly where all the planets were at the precise moment and location of your birth.
Aspects
The angles formed between planets in a birth chart, showing how different parts of your personality interact.
Composite Chart
A single chart created by finding the midpoints between two people's natal charts, representing the relationship itself as its own entity.
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