Calculate your relationship horoscope

Venus & Mars dynamic — The Venus signs show how you love. The Mars signs, how you desire. Their interplay reveals the romantic and passionate chemistry.

Moon compatibility — The moon signs of both partners show whether you are on the same emotional wavelength and how you communicate your needs.

Human Design interplay — How do your energy types complement each other? Where do you define one another? Electromagnetic connections reveal deep attraction.

For a relationship horoscope, two complete birth charts are laid over each other. To do this you need each person's date of birth, a birth time that is as exact as possible, and the place of birth. From this data it becomes clear where the Sun, Moon, Venus, Mars and the other planets each stood at the moment of birth.

The heart of the calculation is the aspects between the planets of the two charts: does your Venus form a harmonious angle with your partner's Mars, or do they rub against each other? Tense angles like the square and the opposition show points of friction, while soft angles like the trine and the sextile show effortless understanding.

It is especially telling when a planet of one person sits right on an important point of the other, such as the ascendant or the Moon. Such contacts often explain why two people feel instantly familiar or irresistibly drawn to one another.

A good synastry is not the one with the fewest tensions. Relationships made up only of soft angles feel pleasant, yet they often remain strangely without consequence. The drive to grow together is missing.

Friction usually arises where needs work differently: your Moon stands for security and closeness, your Mars for assertion and pace. A tense aspect between these two does not mean something is broken — it shows where the two of you consciously have to translate for each other.

In practice this helps you take conflicts less personally. Instead of thinking the other person is doing something wrong, you recognize a pattern that belongs to the difference between your charts and that can be handled well with a little clarity.

A relationship horoscope describes tendencies and resonances, not destinies. It tells you where things between two people become easy or strenuous, but not whether a relationship will last. That is decided by maturity, communication and the willingness to work on yourself.

Don't confuse synastry with a compatibility verdict based on sun signs either. The often-heard claim that two signs simply don't fit together ignores the fact that a person is made up of more than a dozen factors. Two seemingly mismatched sun signs can be deeply connected through their Moon and Venus.

So use the comparison as a map, not as a verdict. It shows you what you may want to pay attention to and which themes will keep returning. The direction you move in is something the two of you decide for yourselves.