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Synastry Chart Calculator

Revised . First published .

Synastry compares two birth charts and finds the angles between one person's planets and the other's.

When were you born?

1 of 4

What time and where were you born?

2 of 4

When was the other person born?

3 of 4

What time and where were they born?

4 of 4

Answer the four questions to find the closest aspects between the two charts.