Libra season falls between September 23 and about October 23. It is the seventh astrological sign in the zodiac, and its element is air. Libra got its name from the Latin term for "weighing scales," making it the only constellation of the zodiac that represents an inanimate object. The symbol is based on the scales of Justice, held by Themis, the Greek personification of divine law and custom. Here are some of the celebrities who share the sign.