Astrology · Compatibility Astrology

Marriage indicators in the Composite Chart

The composite chart is an extremely insightful tool in astrology compatibility analysis. However, it can be difficult to determine the marriage potential of a relationship when you do not know what to look for!

I’ve studied many composite charts of married couples and have noticed some patterns I’d like to share with you.

Keep in mind: One aspect or placement will not determine whether or not you will marry someone; the full Composite chart must be analyzed. 


Having 3 or more planets conjunct in your composite chart is very powerful. The most powerful are conjunctions involving the composite Sun, Moon, Venus, Mercury and Mars.

The stellium is even more powerful when it is aspected by outer planets. I favor easy aspects from Jupiter, Saturn, Uranus, Neptune and Pluto to the composite stellium, but I see hard aspects just as often in the composite charts of married couples.

With hard aspects, the couple will face more challenges in their relationship, but the relationship can still be long lasting and committed.

Do you need a stellium in a composite chart for marriage? No; I’d say stelliums are ideal, but I’ve seen plenty of composite charts of married couples with more ‘spaced out’ planets (though, they usually have at least a couple of conjunctions). Other placements and aspects can certainly indicate marriage, as described below.

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Ruler of the 7th house

The ruler of the seventh house is a very important planet to analyze in the composite chart. The seventh house represents formalized commitment, and gives clues in regards to the longevity of a relationship.

To determine your Composite 7th house ruler, check out the chart below:

  • If your Composite 1st house is in Aries, the 7th house ruler is Venus
  • If your Composite 1st house is in Taurus, the 7th house ruler is Pluto
  • If your Composite 1st house is in Gemini, the 7th house ruler is Jupiter
  • If your Composite 1st house is in Cancer, the 7th house ruler is Saturn
  • If your Composite 1st house is in Leo, the 7th house ruler is Uranus
  • If your Composite 1st house is in Virgo, the 7th house ruler is Neptune 
  • If your Composite 1st house is in Libra, the 7th house ruler is Mars
  • If your Composite 1st house is in Scorpio, the 7th house ruler is Venus
  • If your Composite 1st house is in Sagittarius, the 7th house ruler is Mercury
  • If your Composite 1st house is in Capricorn, the 7th house ruler is the Moon
  • If your Composite 1st house is in Aquarius, the 7th house ruler is the Sun
  • If your Composite 1st house is in Pisces, the 7th house ruler is Mercury

A well-aspected seventh house ruler can indicate a relationship in which both partners are very committed to the relationship.

Here are some aspects I’ve commonly seen in the charts of married couples:

  • Ruler of composite 7th house conjunct, sextile or trine the ruler of the composite 1st house
  • Ruler of composite 7th house conjunct, sextile or trine composite Juno
  • Ruler of composite 7th house conjunct, sextile or trine composite planets (especially Sun, Moon, Venus, Jupiter and Saturn)
  • Ruler of composite 7th house conjunct the composite Angles (AC, DC, MC, IC)
  • Ruler of composite 7th house conjunct composite Vertex
  • Ruler of the composite 7th house conjunct composite North or south node
  • Ruler of the composite 7th house in Libra

Do you need a well-aspected 7th house ruler for marriage? In my opinion, YES! The 7th house ruler represents your love and commitment towards each other. The Composite 7th house ruler in square aspect to Saturn, for example, can indicate difficulty formalizing your commitment. A square from Composite Uranus to the Composite 7th house ruler can indicate an on-off, unpredictable relationship. A trine from Composite Saturn, on the other hand, can indicate longevity in the relationship, as well as formalized commitment (if the rest of the chart agrees).

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5th and 7th house planets

The 5th house represents love, romance, dating, and creativity, so Composite planets in this house (especially Sun, Moon, Mercury, Venus, Mars and Jupiter) indicates a fun and dynamic relationship. There may be a strong desire to have children together, as well. Be sure to analyze the ruler of the Composite 5th house to determine whether babies are in the cards for you and your partner!

The 7th house represents commitment and partnership, so Composite planets in this house (especially Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn) can indicate a powerful connection. In this relationship, the couple feels like a ‘team’, and enjoy being around each other.

5th house and 7th house placements alone do not guarantee marriage, but they are nice additions and can increase the attraction and feeling of unity between the couple. 

Libra Planets

Some of the longest lasting relationships I’ve seen have Composite inner planets in the sign of Libra. 

Libra is the sign of love and partnership, as well as fairness, cooperation and harmony. When a couple has their composite Inner plants in Libra, they are natural partners for each other and find it easy to commit to one another. Being together just feels ‘right’.

I personally know 3 couples with challenging Composite charts, but they come across as the perfect couples and have stayed together for many years. What they all have in common is Composite stelliums in Libra (and their 7th house rulers were well aspected).

Placements to look out for:

  • Composite Sun, Moon, Mercury, Venus, Mars and/or North Node in Libra
  • Composite Ascendant in Libra
  • Ruler of Composite 1st house in Libra
  • Ruler of Composite 7th house in Libra
Free photo silhouettes of wedding couple standing in the rays of sun before mountain landscape
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The Vertex is often referred to as the ‘point of Fate,’ so it is usually powerfully placed in the charts of married couples. It points to couples who are ‘meant to be’. 

Common composite Vertex aspects in the charts of married couples:

  • Composite Vertex conjunct Descendant
  • Composite Vertex in the seventh house (especially if conjunct or opposite a Composite planet)
  • Composite Vertex conjunct the ruler of the Composite house 1, 4, 5, or 7
  • Composite Vertex conjunct or opposite North Node
  • Composite Vertex conjunct Composite Juno, especially if in the 7th house

Composite to natal chart comparison

Comparing each persons natal chart to the Composite chart is a valuable tool in relationship analysis. It is important that both partners have strong inter-aspects with the Composite Chart to ensure mutual commitment. 

Here are a few examples of Composite-to-natal aspects you should look out for:

  • Composite Chart planets conjunct natal angles 
  • Composite Chart angles conjunct natal planets
  • Composite Chart North Node conjunct or opposite natal planets and angles (and vice versa)
  • Composite Chart Vertex conjunct or opposite natal planets and angles (and vice versa)
  • Conjunctions and oppositions between natal planets and Composite planets
  • House overlays to 1st, 4th, 5th, 7th, and 8th houses (Composite planets in Natal houses, and Natal planets in Composite houses)


This is not an exhaustive list, and I will continue to add to it as I discover more important aspects and placements. 

Click here to read On and Off Relationships in Astrology

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Composite Sun in the Signs


The Synastry and Composite are the most important charts in relationship astrology.

In the Composite Chart, the Sun represents the essence of the relationship. To properly assess the Sun, we look at the sign, house, and aspects the Sun receives.

In this article, we will go over how the Composite Sun behaves in different signs!

Composite Sun in Aries

This placement indicates an energetic and competitive couple. They like starting new projects together.

They are an adventurous couple who are not afraid to take risks. They love to explore new places together.

They may come across as very “into themselves” and preoccupied with their own needs.

If the Sun is not aspected well, the couple may come across very selfish and childish. There may be many petty arguments in this relationship.

Composite Sun in Taurus

The Composite Sun in Taurus indicates a relationship focused on comfort and material possessions.

These two are very physically affectionate. They live together in beautiful surroundings, and have a shared love for the “finer things in life”.

These two value stability and security. This couple is not fond of change generally, unless other aspects suggest otherwise.

Composite Sun in Gemini

This placement indicates a couple who loves variety and plenty of communication.

This couple likes being on the go, and may enjoy many short journeys and road trips together.

This is a very social couple and will enjoy socializing with a wide variety of people.

They pique each other’s curiosity and love trying new things together.

They love to talk to one another and keep in touch throughout the day.

Composite Sun in Cancer

This placement indicates a nurturing and caring relationship.

The focus of this relationship is to build a home and family together.

This couple may spend a lot of time with their families.

There could a shared love of cooking and interior design.

This couple may have an shared interest in real estate and genealogy.

Composite Sun in Leo

This couple stands out from the crowd! The world is a stage for this couple. They are a couple who love drama.

They admire each other and pump up one another’s egos. This is a social couple with a wide variety of friends.

They are proud and loyal to one another.

These two give each other a lot of attention, and receive a lot of attention from others.

Composite Sun in Virgo

This couple loves to work together. Perhaps they met at work, at the gym, or through volunteering.

Together, they are more productive and hard-working than they are individually. They enjoy doing chores and running errands together.

They are a health conscious couple, and will encourage each other to take on better habits.

There can also be a shared love of animals.

Others see them as a reliable and dependable couple.

Composite Sun in Libra

This couple values harmony, balance, and cooperation. It is a great placement to have in a composite chart, since Libra represents love and partnership.

This is a social couple who enjoy get togethers and parties. They are very conscious of each other’s needs and make a great team.

There may be a shared interest in the arts.

Composite Sun in Scorpio

This placement indicates a deep, transformative relationship.

This relationship is intense, and feelings will run very deep. Sex and intimacy are a very important part of this relationship.

Possible themes of jealousy and possessiveness may feature strongly here.  

To others, this couple comes across as very intense, secretive, and powerful.

Composite Sun in Sagittarius

Travel and philosophy will feature strongly in this relationship. This placement can be seen in composite charts of couples who met abroad, or who have cultural/ethnic differences.

It can also mean a shared spiritual or religious purpose. The two of you are more adventurous, open minded and positive when you are together.

They love exploring new cultures as a couple.

There may be a shared interest in higher education.

Composite Sun in Capricorn

As a couple, you project an aura of responsibility and practicality. You are committed to one another for the long run.

While you might not be the most physically demonstrative couple, you are stable and loyal to one another. This placement is sometimes seen in charts in which the couple works together or owns a business together.

Others see you as a dependable and reliable couple.

Composite Sun in Aquarius

Friendship is first for this couple. This relationship may be unconventional in some way.

For example, the couple might be in a long distance relationship. They encourage each other’s freedom and individuality. They will have a shared interest in the betterment of humanity.

They might bond over your love of science and technology.

Composite Sun in Pisces

This is a very sweet and loving couple There might be a shared interest in spirituality or art. They bring out each other’s compassion and sensitivity.

They love listening to, or creating music together. They enjoy spending time alone. Others see them as a sweet and loving, but perhaps a bit reclusive, couple.

The are generally forgiving of each other. In some cases, the relationship might lack definition and boundaries can be quite loose.

It’s important to be very clear and honest to one another in this relationship.


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