Zubenelgenubi, also known as Alpha Librae, is a star in the constellation of Libra. It is a binary star system, meaning that it is made up of two stars orbiting around their common center of mass. The word "Zubenelgenubi" comes from Arabic, where it means "the northern claw". Synonyms for this star include Alpha Librae, the North Scale, and Al Zubanah. In ancient times, Zubenelgenubi was used for navigation and was an important celestial marker for ships at sea. Today, astronomers use it to study the properties of binary star systems and to better understand the evolution and formation of stars.