An individual born on September 11th has the sun sign of Virgo. Within the tropical zodiac system, the Sun transits through Virgo from approximately August 23rd to September 22nd. The search term in question functions as a noun phrase, where "sign" is the core noun, modified by the date and the descriptor "star" to specify the astrological category being identified.
Virgo is an Earth sign, a classification associated with practicality, reliability, and a focus on the material world. Its modality is Mutable, which imparts qualities of adaptability, resourcefulness, and a service-oriented mindset. The ruling planet for Virgo is Mercury, the celestial body governing communication, intellect, analysis, and logic. This combination results in archetypal traits such as meticulous attention to detail, systematic thinking, and a methodical approach to problem-solving.
For a more specific analysis, the date falls within the second decan of Virgo (approximately 10-20 degrees of the sign). This decan is sub-ruled by Saturn, which infuses the core Mercurial traits of Virgo with Saturn's influence of discipline, structure, and responsibility. This can manifest as an enhanced ability for diligent work, a strong sense of duty, and a talent for creating efficient systems and plans.
