September 23 - October 22
Ruled by Venus · Vedic name Tula
Libra is the cardinal air sign ruled by Venus, spanning September 23 - October 22 in the Western tropical zodiac. In Vedic astrology it is known as Tula and falls in the sidereal zodiac roughly 24° earlier, and in Hellenistic astrology its strength is judged by Venus's dignity and the chart's sect. This guide reads Libra through all three traditions, where they agree and where they diverge.
| Attribute | Western | Vedic | Hellenistic |
|---|---|---|---|
| Sign name | Libra | Tula | Libra |
| Zodiac | Tropical | Sidereal (~24° earlier) | Tropical |
| Reads ruler by | Modern rulership | Graha + nakshatra | Dignity + sect |
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Venus, the ruler of Libra, expresses a different dimension of her nature here than in Taurus. In Libra, Venus operates through the intellect and the social realm, emphasizing relationship, aesthetic theory, fairness, and the art of creating harmony between different elements. This is Venus as the diplomat, the artist who considers composition, and the lover who values mental compatibility alongside physical attraction. Venus in Libra seeks beauty in balance and proportion rather than in sensory indulgence. She governs partnerships, legal agreements, social graces, and the human drive toward connection and cooperation. Understanding Venus in a birth chart reveals one's approach to relationship, aesthetic values, and the pursuit of harmony.

As a cardinal air sign, Libra represents the first breath of dialogue, the moment when two minds meet and begin the exchange of perspectives. Cardinal signs initiate, and air signs deal with intellect, communication, and relationship. Together, cardinal air produces the most socially initiating and relationally oriented expression of mental engagement in the zodiac. This combination gives Libra its characteristic drive to connect, to compare, and to establish equilibrium. Unlike fixed air (Aquarius), which sustains ideological vision, or mutable air (Gemini), which circulates information, cardinal air creates the meeting point itself. It is the opening argument, the first impression, the extending of a hand in partnership.
By Mira, Starwell's resident reader. Placements computed with the Swiss Ephemeris across Western, Vedic, and Hellenistic traditions. Updated June 7, 2026.