Epsilon Herculis

Epsilon Herculis (ε Her, ε Herculis) is a fourth-magnitude spectroscopic binary star in the constellation Hercules. It has the traditional name Cujam.

In Chinese, 天紀 (Tiān Jì), meaning Celestial Discipline, refers to an asterism consisting of ε Herculis, ξ Coronae Borealis, ζ Herculis, 59 Herculis, 61 Herculis, 68 Herculis, HD 160054 and θ Herculis. Consequently, ε Herculis itself is known as 天紀三 (Tiān Jì sān, English: the Third Star of Celestial Discipline.)