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Calculate the true astrological synastry between you and your partner using real planetary mathematics, not just basic sun signs.
Understanding the mechanics of astrological relationship reading.
Synastry is the astrological study of relationships. It involves overlaying two individual birth charts to see how the planets of one person interact with the planets and houses of the other. This reveals areas of harmony (trines, sextiles) and friction (squares, oppositions).
Quick mode compares your Sun and Venus signs—the planets of core identity and love—which is great for new crushes. Deep Mode calculates the exact mathematical degrees of your Moon, Ascendant, and Mars, providing a highly accurate 3D map of your emotional and physical compatibility.
For Quick mode, no. But for Deep mode, YES. Without a birth time, it is impossible to calculate the Ascendant (Rising sign) or exact Moon degrees, which govern emotional connection and physical attraction.
A low score doesn't mean a doomed relationship; it means friction exists. Often, the most magnetic, long-lasting relationships have squares or oppositions (friction) because it creates passion and growth. Trines (easy aspects) are comfortable but can sometimes lead to boredom.
Venus rules how you show affection, what you value, and your romantic style. Mars rules your primal drive, passion, and sexual chemistry. The interaction between one person's Venus and the other's Mars is considered the ultimate indicator of romantic and physical attraction.