The art of relationship astrology
Two charts.
A closer comparison.
For astrology-curious individuals and couples. Compare known Moon, Venus and Mars placements, then calculate selected aspects when you have the degrees.
A little celestial perspective. Room for your own story.
A closer reading
Learn to see
the layers.
Synastry is the astrological practice of comparing two birth charts. These are some of the elements astrologers consider together.
Read our approach☉The two natal chartsBegin with each person
Each person brings a whole chart. Synastry places those charts in relationship, rather than comparing Sun signs alone.
☽Personal planetsLook beyond the first impression
The Sun, Moon, Mercury, Venus, and Mars are part of the vocabulary astrologers use when interpreting a relationship chart.
△The aspects between youRead the connections
Aspects describe angular relationships between chart positions. Astrologers interpret these connections as part of a larger pattern.
A guide to astrological tradition. Reference: Astrodienst on synastry. The artwork above illustrates the idea; it is not a calculated personal chart.
A celestial field guide
Synastry Comparison Report
Enter known placements for two people. Get an input-by-input comparison, selected aspect calculations and a clear record of what remains uncertain.
Compare our placementsKnown placements, optional degrees. Free and private.
The astrology journal
Follow your
curiosity.
From your first question about signs to a closer look at two charts together.
From the journal
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