How can one predict the nature of a relationship using astrology?
A couple of newer (and still experimental) techniques exist for studying the nature of a relationship. One is called the “relationship chart” (created by Ronald Davison); the chart is cast for the place in space and time that is exactly half-way between the two people’s birth places and times. The second technique is called the “composite chart” (developed by Robert Hand). The Sun in this chart is at the mid-point of the two people’s Suns, the Moon is at the mid-point of the two people’s
Moons, and so on for all the planets. For recommendations of books about all these techniques, see the resource list. (See # 20 for complete details about the list.)
The nature of the synastry technique to be applied depends on the nature of the relationship contemplated and also on whether the relationship is between male and female or people of the same gender.
If two people are contemplating marriage, the technique used is different than it would be if they were contemplating a business relationship. The technique is also different when evaluating a parent-sibling relationship or a superior-subordinate relationship.
As a simplistic example, for marriage, a Sun in Aquarius (female) is an excellent match for Sun in Leo (male) (Sun’s position taken alone — neglecting other planets for purposes of discussion), as long as the two people operate on a spiritual level. This has the potential for the highest type of marriage.
However, if it is a father-son relationship where the father has Sun in Aquarius and the son (especially the first born) has his Sun in Leo, they will cause each other frustration to no end.