Hydor - Revision history

IanRidpath: copyedit

2026-02-20T18:04:10Z

copyedit

Sushoff at 15:57, 20 January 2026

2026-01-20T15:57:47Z

← Older revision		Revision as of 15:57, 20 January 2026
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	{{DISPLAYTITLE: Hydor (ὕδωρ)}}		{{DISPLAYTITLE: Hydor (ὕδωρ)}}
			Authors: {{PAGEAUTHORS}}
			----
	[[File:Hydor Farnese-Stellarium smh2022 anim.gif\|thumb\|animated GIF of the Cetus region on the Farnese Globe mapped to the Stellarium star chart. The curly lines forming a stream of heavenly water (drawing and implementation by SMH 2024).]]		[[File:Hydor Farnese-Stellarium smh2022 anim.gif\|thumb\|animated GIF of the Cetus region on the Farnese Globe mapped to the Stellarium star chart. The curly lines forming a stream of heavenly water (drawing and implementation by SMH 2024).]]
	[[File:Hydor stellarium-Farnese.gif\|alt=star chart with ancient drawings\|thumb\|The Stellarium sky culture "Farnese Globe" maps the depiction of the ancient marble globe to a modern star chart. The constellation of The River and the asterism of the (water)outlet of Aquarius form a huge watery environment for Cetus, The Seamonster. The northern edge of this area is bordered by the "ribbon" of Pisces of which only the southern part is drawn on the marble globe. The artist who made this globe apparently did not consider Pisces as two fish connected with a ribbon, but the northern one of the two as an attribute of the lady goddess (now: Andromeda) and the other one as a dead fish (belly up) at the edge of the heavenly water ("hydor"). CC-BY SMH 2024]]		[[File:Hydor stellarium-Farnese.gif\|alt=star chart with ancient drawings\|thumb\|The Stellarium sky culture "Farnese Globe" maps the depiction of the ancient marble globe to a modern star chart. The constellation of The River and the asterism of the (water)outlet of Aquarius form a huge watery environment for Cetus, The Seamonster. The northern edge of this area is bordered by the "ribbon" of Pisces of which only the southern part is drawn on the marble globe. The artist who made this globe apparently did not consider Pisces as two fish connected with a ribbon, but the northern one of the two as an attribute of the lady goddess (now: Andromeda) and the other one as a dead fish (belly up) at the edge of the heavenly water ("hydor"). CC-BY SMH 2024]]

Sushoff: /* IAU Working Group Star Names */

2025-09-30T07:20:38Z

IAU Working Group Star Names

← Older revision		Revision as of 07:20, 30 September 2025
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	*or for λ Aqr as preserved in Bayer's Uranometria (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, λ Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "[[Satabhisa]]"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).		*or for λ Aqr as preserved in Bayer's Uranometria (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, λ Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "[[Satabhisa]]"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).

	The WGSN chose to adopt Hydor for the star 2 Cet, close tho the Arabian star name [[Safina]], Ship, in the IAU-CSN.		The WGSN chose to adopt Hydor for the star 2 Cet, close tho the Arabian star name [[Safina]], Ship, in the IAU-CSN.<gallery>
			File:Hydor profileCard SadeghFaghanpour-IAU-WGSN.jpg\|Hydor as IAU-star name, profile card (CC BY Sadegh Faganpour for WGSN 2025).
			File:Hydor stickfigure SadeghFaghanpour-IAU-WGSN.jpg.jpg\|Hydor as IAU-star name, in stick figure (CC BY Sadegh Faganpour for WGSN 2025).
			</gallery>

	==Weblinks==		==Weblinks==

Sushoff: /* IAU Working Group Star Names */

2025-09-30T06:05:32Z

IAU Working Group Star Names

← Older revision		Revision as of 06:05, 30 September 2025
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	*or for λ Aqr as preserved in Bayer's Uranometria (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, λ Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "[[Satabhisa]]"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).		*or for λ Aqr as preserved in Bayer's Uranometria (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, λ Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "[[Satabhisa]]"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).

	~~the~~ WGSN chose to adopt Hydor for the star 2 Cet, close tho the Arabian star name [[Safina]], Ship, in the IAU-CSN.		The WGSN chose to adopt Hydor for the star 2 Cet, close tho the Arabian star name [[Safina]], Ship, in the IAU-CSN.

	==Weblinks==		==Weblinks==
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	[[Category:Constellation‏‎]]		[[Category:Constellation‏‎]]
	[[Category:Star Name‏‎]]		[[Category:Star Name‏‎]]
			[[Category:IAU-Star Name‏‎]]
	[[Category:European]]		[[Category:European]]
	[[Category:Cet]][[Category:Aqr]][[Category:Eri]][[Category:Psc]][[Category:PsA]]		[[Category:Cet]][[Category:Aqr]][[Category:Eri]][[Category:Psc]][[Category:PsA]]

	<references />		<references />

Sushoff: /* IAU Working Group Star Names */

2025-09-30T06:04:48Z

IAU Working Group Star Names

← Older revision		Revision as of 06:04, 30 September 2025
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	*for 2 Cet (HIP 301, HR 9098 [https://simbad.u-strasbg.fr/simbad/sim-id?Ident=2+Cet&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]), a blue star (B9) of 4.536 mag in visible light. In modern star charts, the star is located between the tail of the Cetus-figure and the drops of the outlet of Aquarius. Alternatively, i01 Aqr (5.2 mag) or i03 Aqr (5.15 mag), for they are considered today as water drops in the outlet of Aqr. These stars are Psc-Eri-Stream with 4731 members ([https://simbad.cds.unistra.fr/simbad/sim-ref?bibcode=2019A%26A...622L..13M paper]).		*for 2 Cet (HIP 301, HR 9098 [https://simbad.u-strasbg.fr/simbad/sim-id?Ident=2+Cet&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]), a blue star (B9) of 4.536 mag in visible light. In modern star charts, the star is located between the tail of the Cetus-figure and the drops of the outlet of Aquarius. Alternatively, i01 Aqr (5.2 mag) or i03 Aqr (5.15 mag), for they are considered today as water drops in the outlet of Aqr. These stars are Psc-Eri-Stream with 4731 members ([https://simbad.cds.unistra.fr/simbad/sim-ref?bibcode=2019A%26A...622L..13M paper]).
	*or for ~~lambda~~ Aqr as preserved in Bayer's Uranometria (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, ~~lambda~~ Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "[[Satabhisa]]"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).		*or for λ Aqr as preserved in Bayer's Uranometria (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, λ Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "[[Satabhisa]]"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).

	the WGSN chose ~~... (not~~ to ~~apply/ to apply~~ the name ~~to a neighbouring star/ to ...)~~ in the IAU-CSN.		the WGSN chose to adopt Hydor for the star 2 Cet, close tho the Arabian star name [[Safina]], Ship, in the IAU-CSN.

	==Weblinks==		==Weblinks==

Sushoff at 06:01, 30 September 2025

2025-09-30T06:01:29Z

← Older revision		Revision as of 06:01, 30 September 2025
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			{{DISPLAYTITLE: Hydor (ὕδωρ)}}
	[[File:Hydor Farnese-Stellarium smh2022 anim.gif\|thumb\|animated GIF of the Cetus region on the Farnese Globe mapped to the Stellarium star chart. The curly lines forming a stream of heavenly water (drawing and implementation by SMH 2024).]]		[[File:Hydor Farnese-Stellarium smh2022 anim.gif\|thumb\|animated GIF of the Cetus region on the Farnese Globe mapped to the Stellarium star chart. The curly lines forming a stream of heavenly water (drawing and implementation by SMH 2024).]]
	[[File:Hydor stellarium-Farnese.gif\|alt=star chart with ancient drawings\|thumb\|The Stellarium sky culture "Farnese Globe" maps the depiction of the ancient marble globe to a modern star chart. The constellation of The River and the asterism of the (water)outlet of Aquarius form a huge watery environment for Cetus, The Seamonster. The northern edge of this area is bordered by the "ribbon" of Pisces of which only the southern part is drawn on the marble globe. The artist who made this globe apparently did not consider Pisces as two fish connected with a ribbon, but the northern one of the two as an attribute of the lady goddess (now: Andromeda) and the other one as a dead fish (belly up) at the edge of the heavenly water ("hydor"). CC-BY SMH 2024]]		[[File:Hydor stellarium-Farnese.gif\|alt=star chart with ancient drawings\|thumb\|The Stellarium sky culture "Farnese Globe" maps the depiction of the ancient marble globe to a modern star chart. The constellation of The River and the asterism of the (water)outlet of Aquarius form a huge watery environment for Cetus, The Seamonster. The northern edge of this area is bordered by the "ribbon" of Pisces of which only the southern part is drawn on the marble globe. The artist who made this globe apparently did not consider Pisces as two fish connected with a ribbon, but the northern one of the two as an attribute of the lady goddess (now: Andromeda) and the other one as a dead fish (belly up) at the edge of the heavenly water ("hydor"). CC-BY SMH 2024]]

Sushoff at 06:44, 9 August 2025

2025-08-09T06:44:57Z

← Older revision		Revision as of 06:44, 9 August 2025
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	*for 2 Cet (HIP 301, HR 9098 [https://simbad.u-strasbg.fr/simbad/sim-id?Ident=2+Cet&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]), a blue star (B9) of 4.536 mag in visible light. In modern star charts, the star is located between the tail of the Cetus-figure and the drops of the outlet of Aquarius. Alternatively, i01 Aqr (5.2 mag) or i03 Aqr (5.15 mag), for they are considered today as water drops in the outlet of Aqr. These stars are Psc-Eri-Stream with 4731 members ([https://simbad.cds.unistra.fr/simbad/sim-ref?bibcode=2019A%26A...622L..13M paper]).		*for 2 Cet (HIP 301, HR 9098 [https://simbad.u-strasbg.fr/simbad/sim-id?Ident=2+Cet&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]), a blue star (B9) of 4.536 mag in visible light. In modern star charts, the star is located between the tail of the Cetus-figure and the drops of the outlet of Aquarius. Alternatively, i01 Aqr (5.2 mag) or i03 Aqr (5.15 mag), for they are considered today as water drops in the outlet of Aqr. These stars are Psc-Eri-Stream with 4731 members ([https://simbad.cds.unistra.fr/simbad/sim-ref?bibcode=2019A%26A...622L..13M paper]).
	*or for lambda Aqr as preserved in Bayer's Uranometria (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, lambda Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "Satabhisa"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).		*or for lambda Aqr as preserved in Bayer's Uranometria (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, lambda Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "[[Satabhisa]]"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).

	the WGSN chose ... (not to apply/ to apply the name to a neighbouring star/ to ...) in the IAU-CSN.		the WGSN chose ... (not to apply/ to apply the name to a neighbouring star/ to ...) in the IAU-CSN.

Sushoff at 18:51, 25 December 2024

2024-12-25T18:51:27Z

← Older revision		Revision as of 18:51, 25 December 2024
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	[[Category:Star Name‏‎]]		[[Category:Star Name‏‎]]
	[[Category:European]]		[[Category:European]]
	[[Category:Cet]][[Category:Aqr]][[Category:Eri]][[Category:Psc]]		[[Category:Cet]][[Category:Aqr]][[Category:Eri]][[Category:Psc]][[Category:PsA]]

	<references />		<references />

Sushoff at 18:51, 25 December 2024

2024-12-25T18:51:01Z

← Older revision		Revision as of 18:51, 25 December 2024
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	[[Category:Star Name‏‎]]		[[Category:Star Name‏‎]]
	[[Category:European]]		[[Category:European]]
			[[Category:Cet]][[Category:Aqr]][[Category:Eri]][[Category:Psc]]

	<references />		<references />

Sushoff: /* Ancient asterism */

2024-12-15T13:21:21Z

Ancient asterism

← Older revision		Revision as of 13:21, 15 December 2024
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	=== Ancient asterism ===		=== Ancient asterism ===
	Aratus (4th century BCE) in his didactic poem "Phainomena" mentions an asterism "The Water" that is mentioned by no other preserved text:<ref>[https://www.theoi.com/Text/AratusPhaenomena.html ARATUS, PHAENOMENA] (online), from: Callimachus, Hymns and Epigrams. Lycophron. Aratus. Translated by Mair, A. W. & G. R. Loeb Classical Library Volume 129. London: William Heinemann, 1921. https://www.theoi.com/Text/AratusPhaenomena.html</ref><ref>Arat, Phainomena, Engl. translation by Kidd, Douglas, Cambridge Univ. Press 1997</ref> <blockquote>'''Other stars lying scattered below the Water-pourer''' hang in the sky '''between the celestial Monster and the Fish''', but they are faint and nameless. Close to them, like a light spray of water being sprinkled this way and that from the right hand of the illustrious Water-pourer, some pale and feeble star go round. Among them go two rather brighter stars, not so very far apart nor yet very close, onebeautiful and bright star '''beneath the two feet of the Water-pourer,''' the other '''below the dark Monster's tail.''' '''Men call them collectively the Water.''' (389-399)</blockquote>		Aratus (4th century BCE) in his didactic poem "Phainomena" mentions an asterism "The Water" that is mentioned by no other preserved text (''highlighting by us''):<ref>[https://www.theoi.com/Text/AratusPhaenomena.html ARATUS, PHAENOMENA] (online), from: Callimachus, Hymns and Epigrams. Lycophron. Aratus. Translated by Mair, A. W. & G. R. Loeb Classical Library Volume 129. London: William Heinemann, 1921. https://www.theoi.com/Text/AratusPhaenomena.html</ref><ref>Arat, Phainomena, Engl. translation by Kidd, Douglas, Cambridge Univ. Press 1997</ref> <blockquote>'''Other stars lying scattered below the Water-pourer''' hang in the sky '''between the celestial Monster and the Fish''', but they are faint and nameless. Close to them, like a light spray of water being sprinkled this way and that from the right hand of the illustrious Water-pourer, some pale and feeble star go round. Among them go two rather brighter stars, not so very far apart nor yet very close, onebeautiful and bright star '''beneath the two feet of the Water-pourer,''' the other '''below the dark Monster's tail.''' '''Men call them collectively the Water.''' (389-399)</blockquote>
	[[File:Hydor stellarium-007.jpg\|alt=Stellarium star chart \|thumb\|lambda Aquarii named "Hydor" in some early modern maps including Bayer's Uranometria (1603), map in Stellarium. Diphda and Fomalhaut also labelled. ]]		[[File:Hydor stellarium-007.jpg\|alt=Stellarium star chart \|thumb\|lambda Aquarii named "Hydor" in some early modern maps including Bayer's Uranometria (1603), map in Stellarium. Diphda and Fomalhaut also labelled. ]]
	These stars are in the area of the sky between the bright stars Diphda and Fomalhaut, south of the Aquarius and Cetus.		These stars are in the area of the sky between the bright stars Diphda and Fomalhaut, south of the Aquarius and Cetus.

← Older revision		Revision as of 18:04, 20 February 2026
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	Authors: {{PAGEAUTHORS}}		Authors: {{PAGEAUTHORS}}
	----		----
	[[File:Hydor Farnese-Stellarium smh2022 anim.gif\|thumb\|~~animated~~ GIF of the Cetus region on the Farnese Globe mapped to the Stellarium star chart. The curly lines forming a stream of heavenly water (drawing and implementation by SMH 2024).]]		[[File:Hydor Farnese-Stellarium smh2022 anim.gif\|thumb\|Animated GIF of the Cetus region on the Farnese Globe mapped to the Stellarium star chart. The curly lines forming a stream of heavenly water (drawing and implementation by SMH 2024).]]
	[[File:Hydor stellarium-Farnese.gif\|alt=star chart with ancient drawings\|thumb\|The Stellarium sky culture "Farnese Globe" maps the depiction of the ancient marble globe to a modern star chart. The constellation of The River and the asterism of the (water)outlet of Aquarius form a huge watery environment for Cetus, The Seamonster. The northern edge of this area is bordered by the "ribbon" of Pisces of which only the southern part is drawn on the marble globe. The artist who made this globe apparently did not consider Pisces as two fish connected with a ribbon, but the northern one of the two as an attribute of the lady goddess (now: Andromeda) and the other one as a dead fish (belly up) at the edge of the heavenly water ("hydor"). CC-BY SMH 2024]]		[[File:Hydor stellarium-Farnese.gif\|alt=star chart with ancient drawings\|thumb\|The Stellarium sky culture "Farnese Globe" maps the depiction of the ancient marble globe to a modern star chart. The constellation of The River and the asterism of the (water)outlet of Aquarius form a huge watery environment for Cetus, The Seamonster. The northern edge of this area is bordered by the "ribbon" of Pisces of which only the southern part is drawn on the marble globe. The artist who made this globe apparently did not consider Pisces as two fish connected with a ribbon, but the northern one of the two as an attribute of the lady goddess (now: Andromeda) and the other one as a dead fish (belly up) at the edge of the heavenly water ("hydor"). CC-BY SMH 2024]]
	The Ancient Greek term Hydor (ὕδωρ) means "Water". It is a constellation that is only mentioned in Aratus' didactical poem "Phainomena".		The Ancient Greek term Hydor (ὕδωρ) means "Water". It is a constellation that is only mentioned in Aratus' didactical poem "Phainomena".
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	=== Ancient asterism ===		=== Ancient asterism ===
	Aratus (4th century BCE) in his didactic poem "Phainomena" mentions an asterism "The Water" that is mentioned by no other preserved text (''highlighting by us''):<ref>[https://www.theoi.com/Text/AratusPhaenomena.html ARATUS, PHAENOMENA] (online), from: Callimachus, Hymns and Epigrams. Lycophron. Aratus. Translated by Mair, A. W. & G. R. Loeb Classical Library Volume 129. London: William Heinemann, 1921. https://www.theoi.com/Text/AratusPhaenomena.html</ref><ref>Arat, Phainomena, Engl. translation by Kidd, Douglas, Cambridge Univ. Press 1997</ref> <blockquote>'''Other stars lying scattered below the Water-pourer''' hang in the sky '''between the celestial Monster and the Fish''', but they are faint and nameless. Close to them, like a light spray of water being sprinkled this way and that from the right hand of the illustrious Water-pourer, some pale and feeble star go round. Among them go two rather brighter stars, not so very far apart nor yet very close, onebeautiful and bright star '''beneath the two feet of the Water-pourer,''' the other '''below the dark Monster's tail.''' '''Men call them collectively the Water.''' (389-399)</blockquote>		Aratus (4th century BCE) in his didactic poem "Phainomena" mentions an asterism "The Water" that is mentioned by no other preserved text (''highlighting by us''):<ref>[https://www.theoi.com/Text/AratusPhaenomena.html ARATUS, PHAENOMENA] (online), from: Callimachus, Hymns and Epigrams. Lycophron. Aratus. Translated by Mair, A. W. & G. R. Loeb Classical Library Volume 129. London: William Heinemann, 1921. https://www.theoi.com/Text/AratusPhaenomena.html</ref><ref>Arat, Phainomena, Engl. translation by Kidd, Douglas, Cambridge Univ. Press 1997</ref> <blockquote>'''Other stars lying scattered below the Water-pourer''' hang in the sky '''between the celestial Monster and the Fish''', but they are faint and nameless. Close to them, like a light spray of water being sprinkled this way and that from the right hand of the illustrious Water-pourer, some pale and feeble star go round. Among them go two rather brighter stars, not so very far apart nor yet very close, onebeautiful and bright star '''beneath the two feet of the Water-pourer,''' the other '''below the dark Monster's tail.''' '''Men call them collectively the Water.''' (389-399)</blockquote>
	[[File:Hydor stellarium-007.jpg\|alt=Stellarium star chart \|thumb\|~~lambda~~ Aquarii named "Hydor" in some early modern maps including Bayer's Uranometria (1603), map in Stellarium. Diphda and Fomalhaut also labelled. ]]		[[File:Hydor stellarium-007.jpg\|alt=Stellarium star chart \|thumb\|Lambda Aquarii named "Hydor" in some early modern maps including Bayer's Uranometria (1603), map in Stellarium. Diphda and Fomalhaut also labelled. ]]
	These stars are in the area of the sky between the bright stars Diphda and Fomalhaut, south of ~~the~~ Aquarius and Cetus.		These stars are in the area of the sky between the bright stars Diphda and Fomalhaut, south of Aquarius and Cetus.

	The three preserved ancient globes<ref>Hipparchs Himmelsglobus – Ein Bindeglied in der babylonisch-griechischen Astrometrie?, [http://www.springer.com/de/book/9783658186821 Springer Research], Wiesbaden/ New York, 2017</ref><ref>Hoffmann, Susanne M. (2024). Some Results on the three Ancient Globes, Globusfreund/ Globe Studies, ISSN </ref> depict this asterism of The Water as a vessel for the monster named "Ketos" in Greek, making it a monster living in the water (sea), a seamonster<ref>Hoffmann, S.M., Vickers, D. and Geymeier, M. (2022). Constellation Cetus: Whale or Monster?, in: Hoffmann and Wolfschmidt (eds.). Astronomy in Culture – Cultures of Astronomy, tredition Hamburg/ OpenScienceTechnology Berlin, 287</ref>.		The three preserved ancient globes<ref>Hipparchs Himmelsglobus – Ein Bindeglied in der babylonisch-griechischen Astrometrie?, [http://www.springer.com/de/book/9783658186821 Springer Research], Wiesbaden/ New York, 2017</ref><ref>Hoffmann, Susanne M. (2024). Some Results on the three Ancient Globes, Globusfreund/ Globe Studies, ISSN </ref> depict this asterism of The Water as a vessel for the monster named "Ketos" in Greek, making it a monster living in the water (sea), a seamonster<ref>Hoffmann, S.M., Vickers, D. and Geymeier, M. (2022). Constellation Cetus: Whale or Monster?, in: Hoffmann and Wolfschmidt (eds.). Astronomy in Culture – Cultures of Astronomy, tredition Hamburg/ OpenScienceTechnology Berlin, 287</ref>.
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	=== Image Gallery ===		=== Image Gallery ===
	<gallery>		<gallery>
	File:CetusCentered Kugel smh framed.jpg\|an apparent vessel for Cetus on the Kugel-Globe (drawing SMH 2024), 2nd or 1st century BCE		File:CetusCentered Kugel smh framed.jpg\|An apparent vessel for Cetus on the Kugel-Globe (drawing SMH 2024), 2nd or 1st century BCE
	File:Hydor Kugel smh2023.jpeg\|~~map~~ of the Kugel Globe, Cetus in the center of two lines with rings, drawing by SMH 2024, 2nd or 1st century BCE		File:Hydor Kugel smh2023.jpeg\|Map of the Kugel Globe, Cetus in the center of two lines with rings, drawing by SMH 2024, 2nd or 1st century BCE
	File:Farnese dasWasser smh sw framed.jpeg\|Some lines forming a stream of water in which Cetus is centered on the Farnese Globe (drawing by SMH 2021), 2nd or 1st century CE with Hellenistic predecessor		File:Farnese dasWasser smh sw framed.jpeg\|Some lines forming a stream of water in which Cetus is centered on the Farnese Globe (drawing by SMH 2021), 2nd or 1st century CE with Hellenistic predecessor
	File:Hydor Farnese-Stellarium smh2022.jpeg\|Figures of the Farnese Globe mapped to the Stellarium star chart (drawing and implementing by SMH 2021). Cetus-region.		File:Hydor Farnese-Stellarium smh2022.jpeg\|Figures of the Farnese Globe mapped to the Stellarium star chart (drawing and implementing by SMH 2021). Cetus-region.
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	=== Star Name (Early Modern) ===		=== Star Name (Early Modern) ===
	[[File:Aqr Bayer HydorTXT.jpg\|alt=screenshot of historical star catalogue\|thumb\|Bayer (1603) Aquarius star list with the star lambda (highlighted) described as occasionally named "Hydor" (Water) by historical authors.]]		[[File:Aqr Bayer HydorTXT.jpg\|alt=screenshot of historical star catalogue\|thumb\|Bayer (1603) Aquarius star list with the star lambda (highlighted) described as occasionally named "Hydor" (Water) by historical authors.]]
	Allen (1899, page 55), under the headline "λ, 3.8, red" first presents a quotation from Bayer (1603). He states~~, lambda~~ <blockquote>"is the most prominent of the first stars in the Stream.<br> Proclus followed Aratos in calling it Ὕδωρ, [note: Hydor] the Water; and others, Ἔκχυσις, [note: "Ekkhysis"] the Outpouring; Aratos describing it,		Allen (1899, page 55), under the headline "λ, 3.8, red" first presents a quotation from Bayer (1603). He states that Lambda <blockquote>"is the most prominent of the first stars in the Stream.<br> Proclus followed Aratos in calling it Ὕδωρ, [note: Hydor] the Water; and others, Ἔκχυσις, [note: "Ekkhysis"] the Outpouring; Aratos describing it,

	* "Like a slight flow of water here and there, <br>Scattered around, bright stars revolve but small";		* "Like a slight flow of water here and there, <br>Scattered around, bright stars revolve but small";

	although these titles, appropriated by Bayer for λ, originally were for the whole group set apart as the Stream." </blockquote>Then, he continues with the name of a nakshatra "Catabhisaj" for λ Aqr, and only this term is highlighted in bold face (as he layouts star names) and not the name "Hydor". For "Hydor", Allen's description basically repeats Bayer (1603) ~~Uranometria~~, attributing two names to Aratus and Proclus; he does not even transliterate the term (same as Bayer) and gives only the Greek letters.		although these titles, appropriated by Bayer for λ, originally were for the whole group set apart as the Stream." </blockquote>Then, he continues with the name of a nakshatra "Catabhisaj" for λ Aqr, and only this term is highlighted in bold face (as he layouts star names) and not the name "Hydor". For "Hydor", Allen's description basically repeats Bayer's ''Uranometria'' (1603), attributing two names to Aratus and Proclus; he does not even transliterate the term (same as Bayer) and gives only the Greek letters.
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	==IAU Working Group Star Names==		==IAU Working Group Star Names==
	[[File:Psc-Eri-Stream.jpg\|thumb\|Pisces-Eridanus-Stream, 4731 members with 2 Cet the brightest one in the classical "Water" constellation: This table is sorted by Vmag. ]]		[[File:Psc-Eri-Stream.jpg\|thumb\|Pisces-Eridanus-Stream, 4731 members with 2 Cet the brightest one in the classical "Water" constellation: This table is sorted by Vmag. ]]
	[[File:Psc-Eri-Stream MellingPan+Ship anim.gif\|thumb\|~~modern~~ star names Alsafina (Arabic: The Ship) and Hydor (Greek: The Water) seen in the area covered by the classical (obsolete) constellation The Water and the recently discovered Pisces-Eridanus Stream of stars (4731 members). The image was created with TheGIMP, CDS-Simbad and CDS-Aladin using the Mellinger All Sky Panorama as base map. credits: IAU WGSN 2024]]		[[File:Psc-Eri-Stream MellingPan+Ship anim.gif\|thumb\|Modern star names Alsafina (Arabic: The Ship) and Hydor (Greek: The Water) seen in the area covered by the classical (obsolete) constellation The Water and the recently discovered Pisces-Eridanus Stream of stars (4731 members). The image was created with TheGIMP, CDS-Simbad and CDS-Aladin using the Mellinger All Sky Panorama as base map. credits: IAU WGSN 2024]]
	As the term Ὕδωρ originally describes an asterism and, thus, a group of many faint stars or an area in the sky, we can apply the name to any star in that area around the figure of Cetus (in Eridanus, Fornax, Cetus, Sculptor, Aquarius - although "For" doesn't make sense). The name "Hydor" (ὕδωρ) is suggested		As the term Ὕδωρ originally describes an asterism and, thus, a group of many faint stars or an area in the sky, we can apply the name to any star in that area around the figure of Cetus (in Eridanus, Fornax, Cetus, Sculptor, Aquarius - although "For" doesn't make sense). The name "Hydor" (ὕδωρ) is suggested

	*for 2 Cet (HIP 301, HR 9098 [https://simbad.u-strasbg.fr/simbad/sim-id?Ident=2+Cet&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]), a blue star (B9) of 4.536 mag in visible light. In modern star charts, the star is located between the tail of the Cetus-figure and the drops of the outlet of Aquarius. Alternatively, i01 Aqr (5.2 mag) or i03 Aqr (5.15 mag), for they are considered today as water drops in the outlet of Aqr. These stars are Psc-Eri-Stream with 4731 members ([https://simbad.cds.unistra.fr/simbad/sim-ref?bibcode=2019A%26A...622L..13M paper]).		*for 2 Cet (HIP 301, HR 9098 [https://simbad.u-strasbg.fr/simbad/sim-id?Ident=2+Cet&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]), a blue star (B9) of 4.536 mag in visible light. In modern star charts, the star is located between the tail of the Cetus-figure and the drops of the outlet of Aquarius. Alternatively, i01 Aqr (5.2 mag) or i03 Aqr (5.15 mag), for they are considered today as water drops in the outlet of Aqr. These stars are Psc-Eri-Stream with 4731 members ([https://simbad.cds.unistra.fr/simbad/sim-ref?bibcode=2019A%26A...622L..13M paper]).
	*or for λ Aqr as preserved in Bayer's Uranometria (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, λ Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "[[Satabhisa]]"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).		*or for λ Aqr as preserved in Bayer's ''Uranometria'' (1603) which is a red star (M2) of Vmag 3.79 ([https://simbad.u-strasbg.fr/simbad/sim-id?Ident=lam+Aqr&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id SIMBAD]). However as a bright star in the zodiac, λ Aqr has multiple cultural aliases that may be more appropriate choices (e.g. Tibetan "Mondru" (Johnson-Groh 2013), Hindu "[[Satabhisa]]"/"Satabhisaj"/"Satabhisak" (Venketeswara & Shylaja 2016, Sarma 1997, Rudra 2006)).

	The WGSN chose to adopt Hydor for the star 2 Cet, close ~~tho~~ the Arabian star name [[Safina]], Ship, in the IAU-CSN.<gallery>		The WGSN chose to adopt Hydor for the star 2 Cet, close to the Arabian star name [[Safina]], Ship, in the IAU-CSN.<gallery>
	File:Hydor profileCard SadeghFaghanpour-IAU-WGSN.jpg\|Hydor as IAU-star name, profile card (CC BY Sadegh Faganpour for WGSN 2025).		File:Hydor profileCard SadeghFaghanpour-IAU-WGSN.jpg\|Hydor as IAU-star name, profile card (CC BY Sadegh Faganpour for WGSN 2025).
	File:Hydor stickfigure SadeghFaghanpour-IAU-WGSN.jpg.jpg\|Hydor as IAU-star name, in stick figure (CC BY Sadegh Faganpour for WGSN 2025).		File:Hydor stickfigure SadeghFaghanpour-IAU-WGSN.jpg.jpg\|Hydor as IAU-star name, in stick figure (CC BY Sadegh Faganpour for WGSN 2025).