Synastry Compatibility Aspects
Synastry compares two birth charts to reveal relationship dynamics. Explore what each planetary contact means, grouped by planet.
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Sun aspects
Moon aspects
Mercury aspects
Venus aspects
Mars aspects
Jupiter aspects
Saturn aspects
Uranus aspects
Neptune aspects
Pluto aspects
North Node aspects
Chiron aspects
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Calculate your natal chart →Frequently asked questions
What is synastry?
Synastry compares two birth charts to read relationship compatibility, by measuring the aspects between one person's planets and the other's.
Which synastry aspects matter most?
Sun–Moon, Venus–Mars, and Moon–Venus contacts are classic markers of attraction and ease; Saturn contacts point to commitment.
Are challenging synastry aspects bad?
No — squares and oppositions add friction that often creates chemistry and growth. Compatibility depends on the whole pattern.