Eta Eridani

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Eta Eridani (η Eri, η Eridani) is a star in the constellation Eridanus. It has the traditional name Azha ("the breeding place"). The word Azha is a corruption of Persian آشيانه āšiyāne The (ostrich) nest. [1]

In Chinese, 天苑 (Tiān Yuàn), meaning Celestial Meadows, refers to an asterism consisting of η Eridani, γ Eridani, π Eridani, δ Eridani, ε Eridani, ζ Eridani, π Ceti, τ1 Eridani, τ2 Eridani, τ3 Eridani, τ4 Eridani, τ5 Eridani τ6 Eridani, τ7 Eridani, τ8 Eridani and τ9 Eridani.[2] Consequently, η Eridani itself is known as 天苑六 (Tiān Yuàn liù, English: the Sixth Star of Celestial Meadows.)[3]


Eta Eridani belongs to spectral class K0 III-IV and has apparent magnitude +4.1. It is 121 light years from Earth.

Coordinates for J2000:


  1. ^ Star Name - R.H. Allen p.218
  2. ^ (Chinese) 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7.
  3. ^ (Chinese) 香港太空館 - 研究資源 - 亮星中英對照表, Hong Kong Space Museum. Accessed on line November 23, 2010.