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(Created page with "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 HIP20889. (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 a Tau. Applied to ε Tau in recent times (Ptolemy had α Tau the southern eye, and ε Tau on the northern eye). ==Mythology== ==IAU Working Group on Star Names==...")
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[[File:Ain profileCard SadeghFaghanpour-IAU-WGSN.jpg|thumb|Ain - profile card (CC BY Sadegh Faghanpour for IAU-WGSN).]]
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 HIP20889. (ε Tau, HR 1409) in constellation Tau.
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==
==Etymology and History==


From an abbreviation of the sci-A name ain al-thaur "the Bull's Eye," for a Tau. Applied to ε Tau in recent times (Ptolemy had α Tau the southern eye, and ε Tau on the northern eye).
Kunitzsch and Smart (2006)<ref>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.</ref> think, the name is an abbreviation of the scholarly Arabic in mediaeval times, name ''ain al-thaur'', "the Bull's Eye", for α Tau which was applied to ε Tau in recent times. However, Ptolemy had α Tau the southern eye, and ε Tau on the northern eye.

=== Ptolemy's Almagest (~135 CE) ===
{| class="wikitable"
!id
!Greek
(Heiberg 1898)
!English
(Toomer 1984)
!ident.
|-
!
!Ταύρου ἀστερισμός
!Constellation of [[Taurus]]
!
|-
|
|
|
|
|-
|14
|ὁ λαμπρὸς τῶν Ῥάδων ἐπὶ τοῦ νοτίου ὀφθαλμοῦ ὑπόκιρρος
|The stars in the face, called 'the Hyades': the bright star ofthe Hyades, the reddishone on the southern eye
|α Tau
|-
|15
|ὁ λοιπὸς καὶ ἐπὶ τοῦ βορεύου ὀφθαλμοῦ
|The stars in the face, called 'the Hyades': the remaining one, on the nordlern eye
|ε Tau
|}

==== Arabic translation ====
{| class="wikitable"
|14
|...
|النجوم في الوجه، تسمى ”الهياديس“: النجم الساطع من الهياديس، النجم المحمر في العين الجنوبية
|
|α Tau
|-
|15
|...
|النجوم في الوجه، تسمى ”الهياديس“: النجمة المتبقية، على العين الشمالية
|
|ε Tau
|}
The fact of [[Taurus]], the Bull, consists of two eyes, nostrils and other stars in the Hyadres star cluster. So, the name "Eye" can be a direct translation from Ancient Greek to Arabic.


==Mythology==
==Mythology==


==IAU Working Group on Star Names==
==IAU Working Group on Star Names==
The name was adopted by the IAU WGSN on 2015/12/15.
The name was adopted by the IAU WGSN on 2015/12/15. The star is a yellow giant with a confirmed exoplanet which was named simultaneously with the star (Amateru). <gallery>
File:Ain profileCard SadeghFaghanpour-IAU-WGSN.jpg|Ain - profile card (CC BY Sadegh Faghanpour for IAU-WGSN).
File:Ain stickfigure SadeghFaghanpour-IAU-WGSN.jpg|Ain - stickfigure (CC BY Sadegh Faghanpour for IAU-WGSN).
File:Amateru profileCard SadeghFaghanpour-IAU-WGSN.jpg|Ain's planet Amateru - profile card (CC BY Sadegh Faghanpour for IAU-WGSN).
</gallery>


==Weblinks==
==Weblinks==

Latest revision as of 19:43, 5 November 2025

Ain - profile card (CC BY Sadegh Faghanpour for IAU-WGSN).

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

Kunitzsch and Smart (2006)[1] think, the name is an abbreviation of the scholarly Arabic in mediaeval times, name ain al-thaur, "the Bull's Eye", for α Tau which was applied to ε Tau in recent times. However, Ptolemy had α Tau the southern eye, and ε Tau on the northern eye.

Ptolemy's Almagest (~135 CE)

id Greek

(Heiberg 1898)

English

(Toomer 1984)

ident.
Ταύρου ἀστερισμός Constellation of Taurus
14 ὁ λαμπρὸς τῶν Ῥάδων ἐπὶ τοῦ νοτίου ὀφθαλμοῦ ὑπόκιρρος The stars in the face, called 'the Hyades': the bright star ofthe Hyades, the reddishone on the southern eye α Tau
15 ὁ λοιπὸς καὶ ἐπὶ τοῦ βορεύου ὀφθαλμοῦ The stars in the face, called 'the Hyades': the remaining one, on the nordlern eye ε Tau

Arabic translation

14 ... النجوم في الوجه، تسمى ”الهياديس“: النجم الساطع من الهياديس، النجم المحمر في العين الجنوبية α Tau
15 ... النجوم في الوجه، تسمى ”الهياديس“: النجمة المتبقية، على العين الشمالية ε Tau

The fact of Taurus, the Bull, consists of two eyes, nostrils and other stars in the Hyadres star cluster. So, the name "Eye" can be a direct translation from Ancient Greek to Arabic.

Mythology

IAU Working Group on Star Names

The name was adopted by the IAU WGSN on 2015/12/15. The star is a yellow giant with a confirmed exoplanet which was named simultaneously with the star (Amateru).

Weblinks

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.
  1. 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.