
Tau Eridani

Tau Eridani (τ Eridani, τ Eri) 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).
All of them were member of asterism 天苑 (Tiān Yuàn), "Celestial Meadows", "Hairy Head" mansion.