Tau Eridani

Tau Eridani (τ Eri, τ Eridani) is a group of fairly widely scattered stars in the constellation Eridanus.

They form an exception to the general rule that stars that share the same Bayer designation are close together: τ¹ is nearly 20° away from τ⁹ (Pi Orionis is another example of this).

• τ¹ Eri (aka 1 Eridani)^[1]
• τ² Eri (aka 2 Eridani)^[2]
• τ³ Eri (aka 11 Eridani)^[3]
• τ⁴ Eri (aka 16 Eridani)^[4]
• τ⁵ Eri (aka 19 Eridani)^[5]
• τ⁶ Eri (aka 27 Eridani)^[6]
• τ⁷ Eri (aka 28 Eridani)^[7]
• τ⁸ Eri (aka 33 Eridani)^[8]
• τ⁹ Eri (aka 36 Eridani)^[9]

All of them were member of asterism 天苑 (Tiān Yuàn), Celestial Meadows, Hairy Head mansion.^[10]

See also

• Map analysis of the 1961 Zeta Reticuli Incident

References

1. "HD 17206 -- Spectroscopic binary". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-03.
2. "2 Eri -- Star in double system". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-03.
3. "11 Eri -- Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-03.
4. "V* tau04 Eri -- Pulsating variable Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-03.
5. "HD 22203 -- Spectroscopic binary". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-03.
6. "LHS 1591 -- High proper-motion Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-03.
7. "28 Eri -- Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-03.
8. "V* tau08 Eri -- Rotationally variable Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-03.
9. "V* tau09 Eri -- Variable Star of alpha2 CVn type". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-12-03.
10. (Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 12 日