Understanding synastry
A reference library for Sun signs, planetary placements and synastry. Start with the information you have, understand the method, and keep uncertainty visible.
What is synastry?
Synastry compares two natal charts through planetary placements and the aspects between them. Read each aspect in the context of both complete charts, where attraction, communication, emotional rhythm and long-term themes form one relationship pattern.
Read the method first
- What birth information is reliable?
- Which placements are being compared?
- How does the interpretation fit the rest of the chart?
Separate the inputs from the interpretation. Identify which chart factors are known, which depend on a birth time, and which conclusions go beyond what the information supports.
Read the distinction carefully
Keep natal aspects within one chart separate from synastry aspects between two charts. A strong reading names both people’s relevant planets, the longitudes, the separation and the selected orb. Editorial chart artwork expresses the pattern; the exact interpretation begins with the underlying positions.
Read further
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How to Read a Retrograde Planet in a Synastry Contact
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How to Read Synastry When Moon, Venus and Mars Disagree
When Moon, Venus and Mars tell different stories in synastry, rank the emotional, affection and desire layers before you judge the whole connection.
When a Natal Stellium Amplifies a Partner's Planet
A natal stellium can make one partner's planet feel unusually vivid in synastry. Learn how to rank the exact contact, sign, house and orb before you draw a relationship conclusion.
Dominant Planet in Synastry: Find the Natal Chart's Strongest Voice
Learn how to identify a dominant planet from chart angles, rulership, aspects, and condition before you read its role in synastry.
How Cardinal, Fixed, and Mutable Placements Change a Couple's Pace
A practical synastry guide to cardinal, fixed, and mutable mismatches, with Moon, Venus, Mars, aspect, degree, and timing examples.
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Learn what single reception means in synastry, how mutual reception differs, and how dignity, aspects, strength, and chart context change the reading.
How Terms and Bounds Refine a Degree-Based Synastry Reading
Learn how terms or bounds add a careful degree-level layer to synastry, including tables, boundaries, orbs, examples, and limits.