Astrology and Love, Part III: Comparing Planets in Synastry

Sun and Sun

Represents both partners’ life goals, their harmony and compatibility on a long-term or spiritual level, what each person cherishes most, and the sources of happiness. A Sun/Sun connection is a key indicator of true love. If the Suns are incompatible, they will inevitably part ways in the end.

Moon and Moon

Represents emotional harmony, shared living, daily routines, habits, feelings, and sensitivity. If the Moons are incompatible, they will find it hard to spend long periods together.

Mercury and Mercury

Represents compatibility in thinking, communication, interests, talents, and skills. If the two Mercuries are incompatible, it often leads to arguments, misunderstandings, and mutual criticism.

Venus and Venus

Represents leisure and social activities, taste and aesthetics, values, and attitudes toward money and wealth. If the two Venuses are incompatible, they will clash in what they like and value.

Mars and Mars

Represents energy, passion, drive, sexual attitudes, fighting spirit, athletics, and areas of expertise. If the two Mars placements are incompatible, it often leads to fights and conflict.

Jupiter and Jupiter

Represents ethics, beliefs, morals, philosophy, growth and expansion, opportunities, and attitudes toward travel and learning. If the two Jupiters are incompatible, they will hold different ethical and moral standards.

Saturn and Saturn

Represents attitudes toward security and responsibility, long-term goals, status and reputation, and joint endeavors. Incompatible Saturns often indicate instability in home and finances for both parties.

Uranus and Uranus

Represents views on freedom and friendship, novelty and innovation, and involvement in movements, communities, and associations. When the two Uranus placements are incompatible, there are significant differences in forming friendships and in how to help or improve humanity.

Neptune and Neptune

Represents psychological attunement and sentimentality, dreams and fantasies, attitudes toward escapism and addiction, artistic taste, and inclusiveness. Incompatible Neptunes may clash over compulsive tendencies or preconceived notions.

Pluto and Pluto

Represents approaches to transformation and reform, extremism and possessiveness, intensity and depth, and cycles of prosperity and decline. Incompatible Plutos may split off to pursue their own agendas.

Ascendant and Ascendant

Represents a person's overall temperament, appearance, and lifestyle. Different Ascendants attract different kinds of people, leading to different life circumstances.

Midheaven and Midheaven

Represents self-awareness and public identity, career strengths, and personal interests. Conflicting Midheavens may point to different priorities in action and differing perspectives on life.