In astrology, Relationship Astrology examines how two or more astrological charts may be compared or combined to explore patterns of interaction between people. Common techniques include synastry, in which one person’s chart factors are compared with another’s, and composite charts, which create a symbolic chart representing the relationship itself. Astrologers may consider planetary contacts, house overlays, aspects, angles, elements, modalities, and other chart factors when examining relational themes. Relationship Astrology can be used reflectively to explore communication, attraction, tension, shared patterns, and areas of mutual development, but it does not establish that a relationship is destined, healthy, compatible, or guaranteed to succeed.