There isn't a universally recognized concept of a "double zodiac." However, there are a few interpretations that might be considered:
1. Dual Sun Sign: This refers to people born on the cusp between two zodiac signs. For example, someone born between June 20-21 might consider themselves both a Gemini and a Cancer. This is because the Sun, which is considered the ruling planet of a zodiac sign, can be in both signs during this transition period.
2. Double Sun and Moon Signs: In astrology, both the Sun and the Moon signs are considered important. While the Sun sign represents one's personality, the Moon sign reflects one's emotions and inner self. Someone with a "double" zodiac in this sense could mean they have the Sun in one sign and the Moon in another.
3. Multiple Zodiac Systems: Different cultures and astrological traditions have their own zodiac systems. For example, the Chinese zodiac has twelve animal signs, while the Vedic zodiac uses a different set of constellations and planetary placements. Someone could be considered to have a "double zodiac" if they have different placements in multiple systems.
4. Composite Zodiac: This is a less common interpretation but can be used to analyze the compatibility of two people. A composite zodiac combines the birth charts of two individuals to create a new chart that represents their shared energy and potential.
It's important to note that these are just interpretations of the term "double zodiac." No definitive or standardized definition exists.