The composite chart is the horoscope of two people in a relationship combined. The midpoints between the two Ascendants pool together to form a new ascendant. The midpoints between the two natal Sun’s give a new Sun sign and house for the relationship chart. The composite chart is like giving birth to a whole new entity, and signifies the two people in the relationship having one purpose (Sun) or one set of emotional needs (Moon) and one way of communicating (Mercury) and so forth.
The composite chart represents the relationship as a totality, and the Sun rules the major focus of any partnership. Therefore we would look to the sign and house placement of the astrological composite Sun, to understand where the central concerns are in the partnership and the purpose and meaning behind the relationship coming together. Below is a brief overview of the Sun in the first six houses of the composite chart and interpretations.
Sun in 1st House: This shows a couple that strongly identify with one another and their impact as a couple is powerful. According to Liz Greene, “People open up in ways that they may not do when around others. Sometimes this can be disruptive. A couple walk through a room and suddenly somebody starts a punch up in the corner, and that happens to be the moment that the lights blow. Things tend to be activated in the environment when there is a couple with a 1st house composite Sun around. Light is cast in dark corners and things get energized which might otherwise remain asleep." In general, people are affected by this couple and the strength and style of their impact can be studied by looking at the composite Sun sign. The composite Sun in the 1st house likes to start things off first, and radiate confidence as a couple. Perhaps they are both leaders in their field or a pioneering couple and they certainly know how to set a scene. The Sun in 1st house couple tends to do things first and others follow.
Sun in 2nd house: The Sun in 2nd house couple have shared values and focus upon money, spending and finances in general. This is a self-sufficient pair and their self worth as a couple are prime concerns. Often with composite Sun in the 2nd or 8th house there is a focus on the couple’s resources and how they sustain themselves within the relationship as a unified entity. However, the relationship may be overly focused on all that is dependable and trusted and provides them with basic security needs and things which do not threaten their safety. The orientation of this partnership may be material and they might both be collectors, or share the same spiritual values, and both have a desired focus on finances. Hilary and Bill Clinton have their Sun in the 2nd house of Virgo, signifying a focus on helping others or working together. This is an earthy composite Sun and the relationship is grounded and they focus primarily on their work, resources and the development of personal skills. The composite Sun is square to Uranus in the 11th house in Gemini, and this could represent their very political (Uranus in 11th) relationship. And with Venus in Libra in the 3rd house of the composite it is also all about diplomacy! Libra rules negotiations, what’s fair, politeness and reaching a balanced and clear (Libra) view (3rd).
Sun in 3rd House: Indicates that communication is the focus of the partnership and may show a side to the couple that likes to keep the relationship light. The 3rd house relates to local transport, messages, writing, and siblings. Life as a couple may involve travel, witty conversations, lots of newspapers and books around the place. The couple may enjoy talking, discussing, debating and share many interests or distractions in this partnership. They both may enjoy learning together, sharing, and will grow in areas of intellectual exchange. Socializing and networking may be at the center of their lives. Some people with the Sun in Gemini’s house have even related to feeling like twins/siblings. Interactions are important in this relationship and channels must always be kept open to talk.
Sun in 4th house: A domestic focus is powerful in this relationship, as the Sun is placed in the heart of the house and mutual concern for family and relatives is a primary drive. The couple may come from the same family background and there may be strong familiarity between them both. Both families may play a large role in the relationship and the focus is on nurturing, feeding and providing. Safety may also be a concern for this couple, and like the 2nd house there is conscious goal aimed towards security. The home life is central and the relationship may make them want to settle down and set-up home.
Sun in 5th house: A strong romantic and dramatic couple with a powerful focus on children and shared creativity. Attention on romantic affairs and bringing out the best potential regarding each others creative endeavors is the best use of this energy. They may both be artists, or share a love of children. They might work in artistic fields where self-expression in the union is paramount. Both of them like to have fun and drama in their lives together, and they may be an attention seeking couple. Others notice their strong, dramatic style, and as a couple they enjoy pleasure seeking pursuits: Partying, hobbies, sports, art and entertainment are all enjoyed.
Sun in 6th house: The partnership is focused on helping others or working together. Liz Greene says, “The composite Sun doesn’t shine as overtly as it does on the composite MC or Ascendant. The energy of the relationship usually flows into everyday life. The composite Sun requires living in the moment. The core of the relationship serves others in some practical way. The 6th house is known as the house of healing, and the relationship may serve to heal not only others but the couple themselves. Also, there may be a shared love of skill and craft. The 6th house doesn’t necessarily involve boring responsibilities; don’t forget that this is Mercury’s natural house. The composite Sun in the 6th house suggests a relationship which needs to “do” something useful in life. It is not focused on making a lasting impact on the world, like the composite Sun in 10th house, but often great satisfaction comes from creating something together that makes everyday life better and more rewarding."
Read - Composite Sun in Houses Part Two