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Idigna is a modern star name adopted by the International Astronomical Union in the IAU-Catalog of Star Names (IAU-CSN). Its origin is the Sumerian name for the river [[Tigris]]. It is the name of the star π Psc (HIP 7535) in constellation [[Pisces]]. | |||
Idigna is a modern star name adopted by the International Astronomical Union in the IAU-Catalog of Star Names (IAU-CSN). Its origin is the Sumerian name for the river [[Tigris]]. It is the name of the star | |||
==Concordance, Etymology, History== | ==Concordance, Etymology, History== | ||
[[File:Psc+ari+aqr+and_+rivers.jpg|thumb|Psc-And-area with two rivers overlay to Anunitu + Swallow (SMH 2025)]] | [[File:Psc+ari+aqr+and_+rivers.jpg|thumb|Psc-And-area with two rivers overlay to Anunitu + Swallow (SMH 2025)]] | ||
The Sumerian term <sup>mul íd</sup>IDIGNA (𒀯𒀀𒇉𒈦𒄘𒃼) refers to the Tigris River and an asterism named after it. Lexical lists in | The Sumerian term <sup>mul íd</sup>[[IDIGNA]] (𒀯𒀀𒇉𒈦𒄘𒃼) refers to the [[Tigris]] River and an asterism named after it.<ref>Kurtik, G. (2007): Звездное небо Древней Месопотамии. Шумеро-аккадские названия созвездий и других светил [The Star Heaven of Ancient Mesopotamia: Sumero-Akkadian Names of Constellations and Other Heavenly Bodies], Aletejja, St. Petersburg, Russia.</ref> Lexical lists<ref>''Weidner E. '' Ein astrologischer Sammeltext aus der Sargonidenzeit // AfO. 1959-1960. Bd. 19. S. 105-113.</ref><ref>''Materials for the Sumerian Lexicon''. Vol. XI. The Series HAR-ra = ''hubullu.'' Tablets XX-XXIV. Ed. by E.Reiner with the coll. of M.Civil. Roma, 197</ref> in cuneiform equalise the asterism with the Mesopotamian constellation of <sup>mul</sup>''Anunītu'' and the Akkadian river name ''Idiqlat.'' This asterism is not mentioned in MUL.APIN. | ||
The [[ | The asterism IDIGNA refers to 'the eastern fish of Pisces,' which is securely identified from the description in uranology texts.<ref>Beaulieu, P.-A., Frahm, E., Horowitz, W. & Steele, J. (2018), The Cuneiform Uranology Texts: Drawing the Constellations, American Philosophical Society Press, Philadelphia, USA.</ref> Together with the Euphrates' asterism ([[BURANUN]]), <sup>mul</sup>[[SIM.MAḪ]] = ''Šinūnūtu'' 'the Swallow,' it formed a super-constellation that corresponds to classical [[Pisces]]. These identifications make note of the fact that the shape of the courses of the Tigris and Euphrates north and south of central Babylonia, is similar to the V-shaped outline of Pisces. | ||
The [[Tigris]] River maintained its strong cultural significance over centuries and so it was also independently reinvented as a constellation name in early modern times. The Dutch cartographer Petrus Plancius created it on his 1612 celestial map and frequently copied. | |||
[[File:KEE_Tigris+Euphrates.jpg|thumb|Tigris and Euphrates on Plancius' globe gores (1612).]] | |||
As Plancius did not write any documentation on his newly introduced constellations, we can only speculate about some likely biblical reference. Hints are given in his personal life as a clergyman, frequently persecuted because of his belief, and his biblical (geographical) maps (Plancius 1590), where the [[Jordanus|Jordan]] River is featured very similarly to the celestial illustration on his globe gores, and Tigris is depicted next to the Tree of Life in Eden. | As Plancius did not write any documentation on his newly introduced constellations, we can only speculate about some likely biblical reference. Hints are given in his personal life as a clergyman, frequently persecuted because of his belief, and his biblical (geographical) maps (Plancius 1590), where the [[Jordanus|Jordan]] River is featured very similarly to the celestial illustration on his globe gores, and Tigris is depicted next to the Tree of Life in Eden. | ||
==Mythology== | ==Mythology== | ||
no mythology | |||
==IAU Working Group on Star Names== | ==IAU Working Group on Star Names== | ||
The name was | The name Tigris was suggested to the IAU WGSN in 2023, but [[Tigris]] is already and asteroid name. Furthermore, the ancient Mesopotamian constellation [[IDIGNA]] (which is much older than the Early Modern one), is in a different area of the sky. | ||
The name was adopted by the IAU WGSN in 2026 | The name Idigna, borrowed from the Mesopotamian constellation, was adopted by the IAU WGSN in 2026. | ||
<gallery> | <gallery> | ||
Latest revision as of 07:35, 21 September 2026
Authors: Susanne M Hoffmann
Idigna is a modern star name adopted by the International Astronomical Union in the IAU-Catalog of Star Names (IAU-CSN). Its origin is the Sumerian name for the river Tigris. It is the name of the star π Psc (HIP 7535) in constellation Pisces.
Concordance, Etymology, History

The Sumerian term mul ídIDIGNA (𒀯𒀀𒇉𒈦𒄘𒃼) refers to the Tigris River and an asterism named after it.[1] Lexical lists[2][3] in cuneiform equalise the asterism with the Mesopotamian constellation of mulAnunītu and the Akkadian river name Idiqlat. This asterism is not mentioned in MUL.APIN.
The asterism IDIGNA refers to 'the eastern fish of Pisces,' which is securely identified from the description in uranology texts.[4] Together with the Euphrates' asterism (BURANUN), mulSIM.MAḪ = Šinūnūtu 'the Swallow,' it formed a super-constellation that corresponds to classical Pisces. These identifications make note of the fact that the shape of the courses of the Tigris and Euphrates north and south of central Babylonia, is similar to the V-shaped outline of Pisces.
The Tigris River maintained its strong cultural significance over centuries and so it was also independently reinvented as a constellation name in early modern times. The Dutch cartographer Petrus Plancius created it on his 1612 celestial map and frequently copied.

As Plancius did not write any documentation on his newly introduced constellations, we can only speculate about some likely biblical reference. Hints are given in his personal life as a clergyman, frequently persecuted because of his belief, and his biblical (geographical) maps (Plancius 1590), where the Jordan River is featured very similarly to the celestial illustration on his globe gores, and Tigris is depicted next to the Tree of Life in Eden.
Mythology
no mythology
IAU Working Group on Star Names
The name Tigris was suggested to the IAU WGSN in 2023, but Tigris is already and asteroid name. Furthermore, the ancient Mesopotamian constellation IDIGNA (which is much older than the Early Modern one), is in a different area of the sky.
The name Idigna, borrowed from the Mesopotamian constellation, was adopted by the IAU WGSN in 2026.
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Weblinks
Reference
- ↑ Kurtik, G. (2007): Звездное небо Древней Месопотамии. Шумеро-аккадские названия созвездий и других светил [The Star Heaven of Ancient Mesopotamia: Sumero-Akkadian Names of Constellations and Other Heavenly Bodies], Aletejja, St. Petersburg, Russia.
- ↑ Weidner E. Ein astrologischer Sammeltext aus der Sargonidenzeit // AfO. 1959-1960. Bd. 19. S. 105-113.
- ↑ Materials for the Sumerian Lexicon. Vol. XI. The Series HAR-ra = hubullu. Tablets XX-XXIV. Ed. by E.Reiner with the coll. of M.Civil. Roma, 197
- ↑ Beaulieu, P.-A., Frahm, E., Horowitz, W. & Steele, J. (2018), The Cuneiform Uranology Texts: Drawing the Constellations, American Philosophical Society Press, Philadelphia, USA.





