Synastry, or the astrological study of relationships, traditionally uses only close aspects between planets to assess a relationship. But what about when not using degree aspects?

Then we are left with all kinds of possibilities -mutual and interfunctional aspects, dispositorship, and something else that is quite different.

Here is a new or unique way to do synastry based on your natal planetary aspects(by sign) which attract certain other planet/sign placements. Take any natal planetary aspect in your chart(by sign) and study its components. Note: a knowledge of sign rulerships or dignities is necessary here.

Let's take Sun trine Mars(by sign) for example. Sun rules Leo and Mars rules Aries, so this aspect has an affinity to the placements of Sun in Aries or Mars in Leo. Because the trine is involved, these two placements will be harmonious to the native.

Let's take another example: Mercury square Mars. Mercury rules Gemini/Virgo and Mars rules Aries, so that this aspect equates with Mercury in Aries or Mars in Gemini/Virgo. Because the square is involved. these three placements will prove difficult for the native.

Do this with all of the aspects in your chart and see which placements keep popping up and whether they are harmonious or discordant. Conjunctions and oppositions are the most powerful or important good aspects while squares are the most important difficult aspects. Trines and sextiles are harmonious and semi-sextiles and inconjuncts(or quincunx) are discordant. You can use modern(preferred) or traditional rulerships and the ten known planets(Asc and MC can be experimental).

The rulerships or dignities are as follows: