Compatibility by Date of Birth
Synastry — a comparison of two natal charts: the real aspects between your planets show what draws you together and where friction arises.
First person
Second person
What Synastry Is
Synastry is the branch of astrology that compares two natal charts and looks for the aspects (angles) between two people's planets: one person's Sun conjunct the other's Moon, say, or Venus square Mars. It's these links between the charts — not a match of zodiac signs — that the tradition regards as the basis of attraction, mutual understanding, and friction in a couple.
We calculate both natal charts with a real astronomical formula, find every meaningful aspect between the planets, and then the AI writes a reading based on those aspects — not on a template like "Aries and Taurus are compatible," but on the specific links between your charts.
Why It's More Accurate Than Sign Compatibility
"Zodiac sign" compatibility compares a single point — the position of the Sun — out of twelve possible ones. Synastry takes into account the links between all the classical planets of both charts: the Moon shows emotional closeness, Venus and Mars attraction and energy, Mercury how communication is built, Jupiter and Saturn whether the couple grows together or holds each other back. Two people of the same sign can look nothing alike by chart — and vice versa.
Important to Understand
Synastry is an ancient tradition of interpreting relationships through the symbolism of the sky, not a scientific forecast of compatibility. Difficult aspects don't mean a couple isn't meant to be together — they're more like themes worth talking through consciously in the relationship.
Other readings and forecasts
The portal has 50 tools — from tarot and runes to a full natal chart. See what else they can tell you.
