Ain

Ain is a modern star name adopted by the International Astronomical Union in the IAU-Catalog of Star Names (IAU-CSN). Its origin is Arabic. It is the name of HIP 20889 (ε Tau, HR 1409) in constellation Tau.

Etymology and History

From an abbreviation of the sci-A name ain al-thaur, "the Bull's Eye", for α Tau. Applied to ε Tau in recent times (Ptolemy had α Tau the southern eye, and ε Tau on the northern eye).

IAU Working Group on Star Names

The name was adopted by the IAU WGSN on 2015/12/15.

Weblinks

• Website of the IAU WGSN: https://exopla.net/

Reference

• References (general)
• Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub.