Synastry: How to Compare Two Birth Charts

If you are interested in astrology, you may have wondered how compatible you are with someone else. Whether it is a romantic partner, a friend, a family member, or a colleague, you can learn a lot about your relationship by comparing your birth charts. This is called synastry, and it is a powerful tool for understanding the dynamics between two people.

Synastry is the study of how two astrological charts interact with each other. It shows how the planets in one person’s chart affect the planets in another person’s chart, and vice versa. By looking at the aspects, or angles, between the planets, you can see the strengths and challenges of the relationship, as well as the potential for growth and harmony.

To do a synastry analysis, you need to have the accurate birth data of both people: the date, time, and place of birth. You can use an online calculator or software to generate the birth charts and the synastry chart, which is a composite of the two charts overlaid on each other. Alternatively, you can consult a professional astrologer who can interpret the synastry chart for you.

There are many factors to consider when doing a synastry analysis, but here are some of the most important ones:

  • The Sun: The Sun represents your core identity, your ego, your purpose, and your vitality. The Sun in synastry shows how you express yourself and how you are seen by the other person. A harmonious aspect between the Suns, such as a conjunction, sextile, or trine, indicates a strong affinity and compatibility. You share similar goals and values, and you support each other’s growth and confidence. A challenging aspect between the Suns, such as a square or opposition, indicates a clash of egos and wills. You may have different views and approaches to life, and you may compete or challenge each other. However, this can also create attraction and excitement, if you respect each other’s differences and learn from them.
  • The Moon: The Moon represents your emotions, your instincts, your needs, and your habits. The Moon in synastry shows how you feel and how you nurture each other. A harmonious aspect between the Moons, such as a conjunction, sextile, or trine, indicates a deep emotional connection and compatibility. You understand each other’s feelings and moods, and you provide comfort and security to each other. A challenging aspect between the Moons, such as a square or opposition, indicates emotional conflict and misunderstanding. You may have different needs and expectations from each other, and you may trigger each other’s insecurities or fears. However, this can also create passion and intensity, if you communicate and compromise with each other.
  • The Ascendant: The Ascendant, or rising sign, represents your personality, your appearance, your attitude, and your first impression. The Ascendant in synastry shows how you relate to each other on a personal level. A harmonious aspect between the Ascendants, such as a conjunction, sextile, or trine, indicates a natural attraction and compatibility. You like each other’s style and vibe, and you get along well with each other. A challenging aspect between the Ascendants, such as a square or opposition,
    indicates personality clashes and friction. You may have different ways of expressing yourself and dealing with situations,
    and you may annoy or irritate each other. However,
    this can also create interest and curiosity,
    if you appreciate each other’s uniqueness
    and diversity.
  • The Nodes: The Nodes of the Moon represent your soul’s journey,
    your past karma,
    and your future destiny.
    The Nodes in synastry show how you influence each other’s spiritual growth
    and evolution.
    A harmonious aspect between the Nodes,
    such as a conjunction,
    sextile,
    or trine,
    indicates a karmic bond
    and compatibility.
    You have met before in a previous life,
    and you have something to teach or learn from each other.
    You help each other fulfill your soul’s purpose
    and direction.
    A challenging aspect between the Nodes,
    such as a square or opposition,
    indicates a karmic debt
    or challenge.
    You have unresolved issues from a past life
    that need to be healed or balanced.
    You may face obstacles or tests
    in your relationship
    that require patience
    and perseverance.
    However,
    this can also create growth
    and transformation,
    if you overcome your fears
    and embrace your destiny.

These are just some of the main factors
to look at when doing a synastry analysis.
There are many more details
and nuances
that can be explored,
such as the aspects between the planets
in different houses,
the midpoints,
the asteroids,
and so on.
Synastry is not an exact science,
but an art
that requires intuition
and interpretation.
Synastry can help you understand
the dynamics of your relationship,
but it cannot predict
the outcome
or the quality
of your relationship.
Ultimately,
it is up to you
and the other person
to make the most
of your compatibility
and potential,
and to work on your challenges
and differences.
Synastry can be a guide,
but not a judge.

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