Not Just Zodiac Signs: How Astrology Assesses Relationship Compatibility

KOMPAS.com — Many people check relationship compatibility solely from zodiac signs, or Sun signs. For example, Aries is considered compatible with Leo or Sagittarius, while Taurus is often paired with Virgo or Capricorn. However, in astrology, compatibility between partners is not determined by a single zodiac sign. Cited from Cosmopolitan, astrologers usually view the birth chart in its entirety, including the positions of the Sun, Moon, Venus and Mars. One concept commonly used to gauge relationship dynamics is Sun–Moon synastry, the interaction between a person’s Sun sign and their partner’s Moon sign. The Moon sign relates to the emotional side. The Moon’s position in the birth chart is believed to reflect how a person experiences emotions, inner needs, and how they seek security within the relationship. Therefore, the Sun sign is often regarded as a person’s “outer self”, while the Moon sign describes a deeper and more personal emotional world. If a person’s Sun sign aligns with their partner’s Moon sign, the relationship is thought to have a strong emotional connection. For example, if someone’s Sun is in Cancer while their partner’s Moon is also in Cancer, this combination is believed to help both people understand each other’s emotional needs more readily. Conversely, if a person’s Moon aligns with their partner’s Sun, the relationship can also feel more harmonious, because the emotional needs of one party meet the way the other expresses themselves. In many discussions of astrology, this condition is often regarded as a “green flag” in a relationship, as it signals natural emotional closeness. The compatibility between Sun and Moon can help explain why two people might feel close quickly, understand each other easily, or, conversely, frequently experience misunderstandings. However, it is important to remember that astrology is not an exact science that can determine the fate of a relationship.