Here's why:
* Sun Sign vs. Full Chart: Astrology considers the placement of all planets and celestial bodies at the time of a person's birth to create a complete "natal chart." While the Sun sign (Libra in this case) is a starting point, it doesn't tell the whole story.
* Aspects and Interactions: Each planet interacts with the others in various ways, creating "aspects" that influence the overall interpretation of the chart.
* Other Sign Influences: The Moon, Ascendant, and other planets all contribute to a person's personality and characteristics. A person with a Libra Sun could have a strong influence from another sign in other areas of their chart.
What could be meant by "double Libra":
* Two Libra placements: Someone could have their Sun sign and Ascendant (rising sign) both in Libra.
* Strong Libra Influence: They might have multiple planets in Libra, or a significant emphasis on Libra themes in their birth chart.
If you're curious about your own chart, it's best to consult a professional astrologer who can analyze your full birth chart and give you a personalized interpretation.