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Relationship Synastry: How to Calculate Astrological Compatibility

Viviana Queirolo Bertoglio

What is couple synastry?

Synastry is an astrological analysis that compares two birth charts to highlight affinities and points of tension in a relationship.

The two people may be linked by a romantic, friendly, emotional, or familial relationship.

But what is a birth chart?

The birth chart and its interpretation are the purpose, the ultimate goal of astrology and of anyone who approaches and studies this ancient discipline.

It is a snapshot of the planetary coordinates at the exact moment we were born. Where was the Moon? Full or waxing? In which zodiac sign were the Sun and all the other planets of the solar system?

Essentially, it is a chart, a circle to be exact, divided into 12 slices (astrological houses) in which the symbols of the planets are arranged according to their position at the time of our birth.

How is synastry calculated?

The planetary positions of two people are compared by analyzing the aspects formed between the planets of both birth charts.

Synastry presents itself in the same way: a 360-degree circle divided into 12 sections, except that in this case everything is doubled: there are two circles and twice as many planets.

Couple synastry: what it is and what it is used for

Couple synastry is used to identify and study the strengths and weaknesses of the relationship between two people involved in a relationship.

How is a couple's compatibility calculated?

The groups of planets present in the chart form aspects, as is said in technical jargon, which describe the relationship between the planets of the two people.

What are the main aspects in synastry?

The main aspects include trines, conjunctions, oppositions, and squares, each with specific meanings.

Once the relationship between the two planets is identified, we move on to the interpretation of its meaning. The interpretation arises from the definition of the symbolism of the planets involved and the symbolism associated with the aspect formed.

Couple synastry, like the interpretation of the birth chart, represents meticulous work with which the possibilities of the relationship between the two subjects are explored.

Request the synastry calculation for the person who is dear to you here!

What do squares and oppositions mean?

Squares and oppositions generally indicate points of tension, critical issues, and challenges within the relationship.

Trines and conjunctions identify the strengths of a bond.

What are the most significant planets in synastry?

The most impactful aspects are usually those between personal planets (Sun, Moon, Mercury, Venus, Mars) and slow planets (Jupiter, Saturn, Uranus, Neptune, Pluto).

The importance of the identified aspect depends greatly on the planets involved.

Usually, the aspects that create a stronger impact within a relationship are those formed between slow planets and personal planets.

The slow planets are: Jupiter, Saturn, Uranus, Neptune, and Pluto

The personal or fast planets are: Sun, Moon, Mercury, Venus, and Mars

Why request a synastry?

It is used to better understand the dynamics of a relationship, clarify turbulent situations, and identify the possibilities for the relationship to develop.

The need to request an affinity calculation arises essentially to better understand the dynamics that govern the relationship with a person.

In my experience, it is above all people involved in a romantic relationship who ask to explore the possibilities of their bond.

The goal is to understand if the relationship has the possibility of continuing, structuring itself, and lasting. When you are in love, the thing you want most of all is to know that you will be able to stay with the chosen person for as long as possible.

In other cases, these are turbulent, unstable relationships, and the people who ask for synastry need to understand why the other person behaves in a certain way and what they can expect in the future.

The usefulness of this tool lies in the fact that it offers the possibility of looking at the relationship from the outside; in this way, the dynamics become clearer because they can be approached in a detached manner.

Read more about the calculation of karmic synastry and request an online session

The potential of the relationship, as well as its weaknesses, are clarified and given a reason. From this arises awareness, and when you reach it, you have the possibility to decide, to choose, to act differently from how you have always done. And inevitably, things take a different turn.

So, to those who ask what a synastry is used for or why request it, I say that it is a means that allows you to know the path to improve or help a couple's relationship grow, whether it is one of love, friendship, or kinship.

Astra inclinant, sed non necessitant. The stars influence us, but they do not determine us. Therefore, it is always a personal and individual choice whether or not to follow the path indicated by the stars. Free will is and always will remain one of our great, immense powers.

Is it a passing love or a karmic love?

Another very important piece of information that can be obtained by requesting a synastry calculation is precisely knowing if there is a karma that binds us to that person and what type it is.

What is a karmic relationship?

A karmic relationship is a bond that implies a karmic debt or credit to be resolved with the other person, dating back to previous lives.

Karma is essentially divine justice that tends to restore equity among the individuals involved. We often speak of karmic debt, like a payment we did not settle in our previous lives and that we are called to make in this life.

The meaning of Karma – Discover more here!

In the case of a romantic relationship, whatever kind it may be, knowing if it is based on a karmic debt can be very enlightening. It often represents the end of the thread needed to unravel tangled or stagnant situations.

What types of karma are identified with synastry?

It is possible to identify Saturn, Uranus, Neptune, and Pluto karma, each with a different impact and relational meaning.

But not only can you understand if it is a karmic relationship, you can also know what type it is. Knowing if it is a karmic bond of Saturn, of Uranus, of Neptune, or of Pluto can be useful, but obviously it always depends on a personal choice to break certain patterns and start living the relationship in a new, authentic way.

Read more about the karmic bond and request an online session

Does synastry determine the fate of the relationship?

No, synastry shows potential and critical issues, but personal choices and free will determine the actual course of the relationship.

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