Astronomy and Space

Epsilon Draconis

Epsilon Draconis, Latinized from ε Draconis, is a binary star in the constellation Draco, with a combined apparent magnitude of 3.84, it is the eleventh-brightest star in this rather faint constellation. This star along with Delta Draconis (Altais), Pi Draconis and Rho Draconis forms an asterism known as Al Tāis, meaning "the Goat". The distance to this system has been calculated to be about 150 light-years, based on stellar parallax measurements. In Chinese astronomy, 天廚 (Tiān Chú), meaning the Celestial Kitchen, refers to an asterism consisting of Epsilon Draconis, Delta Draconis, Sigma Draconis, Rho Draconis, 64 Draconis and Pi Draconis. Consequently, the Chinese name for Epsilon Draconis itself is 天廚三 (Tiān Chú sān, English: the Third Star of the Celestial Kitchen.) Most authors do not use a traditional name for this star, using instead the Bayer designation; but Bečvář (1951) listed it as Tyl .

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See also

• ▸Achernar
• ▸Agrio Formation
• ▸Water

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