Relationship Astrology

Your birth chart is a map of your love life. It shows how you express affection, what makes you desire, which type of partner you attract and where relationships challenge you. Venus, Mars, your descendant and the 7th house are the keys of relationship astrology — they reveal your patterns long before you live them out in the world. Birth Codex calculates 23 cosmic systems and translates your love profile into clear words.

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What your birth chart reveals about your relationships

Your Venus — Venus is your planet of love. It shows how you give and receive affection, what attracts you romantically and which values are sacred to you in a partnership.

Your Mars — Mars stands for desire, passion and drive. It reveals how you pursue and how you handle conflict — and which dynamic between attraction and friction is at work in your relationships.

Your descendant & 7th house — The descendant is the point of partnership. It describes which qualities you seek in a counterpart and which image of a partner you unconsciously draw into relationships.

Your moon sign — The Moon shows your core emotional need: what do you require to feel truly safe and nourished in a relationship? This is where lasting closeness is decided.

Venus and Mars: how you love and desire

Venus shows how you give and receive affection, what you find beautiful and pleasant, and how you shape closeness. It stands for your relationship style in everyday life: some people need plenty of verbal reassurance, others feel loved through shared time or small gestures. The sign and house your Venus sits in give concrete clues about this.

Mars, by contrast, describes your desire, your drive and how you act on attraction. While Venus nurtures the relationship, Mars provides initiative and passion. When the two play well together, it's easy for you to show what you want while staying connected.

Tension between Venus and Mars in your chart isn't a problem but a task: perhaps you attract people you feel passionate but not harmonious with, or the other way around. Knowing these two planets consciously helps you recognize the pattern rather than repeat it unconsciously.

The descendant and the 7th house

The descendant is the point opposite your ascendant and marks the start of the 7th house — the classic domain of committed partnerships and close bonds. The sign on the descendant often describes traits you seek in others because they feel less familiar within yourself. You're frequently drawn to people who embody exactly these qualities.

Planets in the 7th house color your relationship experiences further. Saturn there can point to a need for commitment and maturity, sometimes also to an initial reserve. Venus or Jupiter lean more toward ease and a strong longing for partnership.

The distinction matters: the ascendant shows how you present yourself to the outside world, the descendant what you seek in a counterpart and partly project onto others. Whoever understands both poles as parts of themselves becomes more independent of the idea that a partner must complete their own other half.

Understanding synastry instead of assigning blame

Relationship astrology doesn't end with your own chart. When two birth charts are compared, this is called synastry: it reveals how your planets come into contact with each other and which themes between you are especially alive or full of friction. Trines and sextiles suggest flow, squares and oppositions point to friction that can be quite invigorating.

A common misconception is that a chart comparison could predict whether a relationship will succeed. In reality it describes dynamics, not verdicts. Even challenging constellations can be carried if both people are willing to work on the themes they reveal.

This becomes practically useful when you understand recurring conflicts not as personal fault but as patterns. If you know, for example, that your Mars placements rub against each other, you can address arguments about pace and assertiveness more deliberately, instead of reading them as a character flaw in the other person.

Frequently asked questions

What is relationship astrology?

Relationship astrology interprets your love life from your birth chart. It analyzes Venus (how you love), Mars (desire), the descendant and 7th house (your image of a partner) as well as the Moon (emotional needs) — and so reveals your relationship patterns and needs.

What is synastry?

Synastry is the comparison of two birth charts to understand the dynamic between two people. Its foundation is always your own chart: only once you know your own Venus, Mars and Moon themes does the connection to another person become readable.

Do I need my partner's birth data?

Not for your own relationship profile — your date of birth, time of birth and place of birth are enough. From this, Birth Codex calculates Venus, Mars, the descendant, the Moon and 23 more cosmic systems. That is the basis for understanding any connection more clearly.