Don't forget sidus ludovicianum! Named by a butt-kissing court astronomer after Mad King Ludvig.
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Posts tagged #StarNames
✨ WGSN 2025 report published!
IAU Working Group on Star Names report now in JAHH 28(4), 1026–1038.
New research on historical & Indigenous star names.
Thanks to Susanne M. Hoffmann & Jörg M. Determann and to the editorial team of JAHH.
🔗 doi.org/10.3724/SP.J...
#IAU #WGSN #StarNames
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✨ IAU-WGSN Star Names 2025 ✨
In 2025, the IAU-WGSN adopted 40 new star names, up from 19 in 2024. These names reflect rich cultural roots—from Indigenous, Arabic, Chinese, and classical traditions. Mapped using Gaia DR2. 🌌
#IAU #WGSN #StarNames #Astronomy #GaiaDR2
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🔴 In 2025, the IAU WGSN approved 40 new official star names from global sky traditions, including Chinese, Arabic, Sámi, Indian, Egyptian, and classical Greek & Latin sources—celebrating humanity’s shared astronomical heritage.
#IAU #WGSN #StarNames #Astronomy
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🔴 In 2025, the IAU WGSN approved 40 new official star names from global sky traditions, including Chinese, Arabic, Sámi, Indian, Egyptian, and classical Greek & Latin sources—celebrating humanity’s shared astronomical heritage.
#IAU #WGSN #StarNames #Astronomy
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🔺 Triangulum — Star Names
Alaybasān (β Tri) — Arab.
Deltoton — Greek.
Apdu (γ Tri) — Egyptian.
Mothallah (α Tri) — Arabic.
Triangulum unites Arab, Greek, and Egyptian sky traditions.
#Triangulum #StarNames
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🔴 Juan Antonio Belmonte, member of #WGSN, presented “Astronomy and World Heritage: the Iberian Paradigm” at AHME-2 (Yerevan, 6–10 Oct 2025).
He showed how ancient Iberian sites — from Antequera Dolmens to Talayotic Menorca — reveal humanity’s timeless bond with the sky.
#IAU #StarNames
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🔵 Dajiangjunbei – ∮ Persei (HR 498)
Hot B-type star in Perseus ♢ mag 4.06 from 720 ly
🌡️ ~29,300 K | 9.6 M☉ | 5.5 R☉ | B2Vep
💫 Runaway O/B-type binary w/ circumstellar disk
📜 Named “Heaven’s Great General” in Chinese asterism Dajiangjun
✅ Adopted by IAU in Aug 2025
#Dajiangjunbei #StarNames
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🟡 Triminus – 6 Trianguli (HIP 10280)
Close binary in Triangulum ♢, shining at mag 5.3 from 289 ly away.
🌡️ ~4,930 K | 2.5 M☉ | 4 R☉ | G0 III
💫 RS CVn-type with starspots & ellipsoidal variability.
📜 Name from Hevelius’s Triangulum Minus asterism.
✅ Adopted by IAU in Aug 2025.
#Triminus #StarNames
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🌟 New in August 2025:
WGSN adopts star names from Chinese & ancient Greek traditions — highlighting asterisms in Andromeda, Perseus, Cetus & Triangulum, from classical astronomy to early modern heritage.
Names now in the IAU Star Names Catalog 🔗 exopla.net/star-names
#WGSN #IAU #StarNames
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🔵 Acamar (θ Eridani) – HIP 13847
From Arabic Ākhir al-Nahr = “the river’s end.” 🌊 In Greek & Islamic astronomy, it marked Eridanus’s termination before Achernar was visible.
A3IV–V white subgiant: 🌡️ 8200 K | 2.6 M☉ | 4.85 R☉ | mag 3.18 | 161 ly
✅ Officially IAU-adopted
#Acamar #IAU #StarNames
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🌟 IAU – May 2025
6 new official star names:
Paradys 🪶 αAps – Bird of Paradise
Honores 📜 7And – Honours
Alfarasalkamil 🐎 οAnd – Complete Horse
Udkadua 🌩 λAnd – Storm Demon
Rasalnaqa 🐪 ιAnd – Head of She-Camel
Kaffalmusalsala ⛓ κAnd – Hand of Chained Woman
#IAU #StarNames
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🟠 Paradys (α Apodis) – HIP 72370
Dutch for “bird of paradise,” named by Plancius in 1598 🗺️
K3III orange giant:
🌡️ 4,090 K | 59.5 R☉ | 4.46 M☉ | mag 3.79
📍 Tail of Apus, decl. –79°
✅ IAU star name (2025)
#WGSN #IAU #Paradys #Apus #StarNames #AllSkies
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🔵 Kaffalmusalsala (κ And) – HIP 116805
Arabic for “Hand of the Chained Woman” 🤲 — traditional Andromeda star from Almagest 🌌
B9IVn blue-white subgiant:
🌡️ 10,342 K | 2.7 M☉ | mag 4.14
💫 Directly imaged exoplanet host; possible Beta Pic group member
✅ IAU-approved 2025
#WGSN #IAU #StarNames
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🟠 Udkadua (λ And) – HIP 116584
Sumerian for “Storm Demon with the Gaping Mouth” ⚡ — from a 3,000-year-old Babylonian timekeeping asterism 📜
G8IVK yellow-orange subgiant:
🌡️ 4,633 K | 1.47 M☉ | mag 3.82
📍 Hand of Andromeda, near Cassiopeia
✅ IAU-approved 2025
#WGSN #IAU #Udkadua #Andromeda #StarNames
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🟡 Honores (7 And) – HIP 114570
Latin for “honours” — from Bode’s Enlightenment-era constellation (1801) 📜
F1V main-sequence:
🌡️ 7,380 K | 1.6 M☉ | mag 4.52
📍 Left arm of Andromeda
✅ IAU-approved 2025
#WGSN #IAU #Honores #Andromeda #StarNames #CulturalAstronomy
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🌟 New in May 2025:
WGSN adopts star names from Dutch, Latin, Arabic & Sumerian traditions — reviving asterisms in Apus & Andromeda, from ancient skies to early modern charts.
Names now in the IAU Star Names Catalog
🔗 exopla.net/star-names
#WGSN
#IAU
#StarNames
#Apus
#Andromeda
#SkyHeritage
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🔵 Ramus – 102 Her
Named from Latin "branch" (Ramus Pomifer), in Hercules 🌿
Young, hot B2 IV star:
🌡️ 22,420 K | 🌟 3,600× Sun | ⚖️ 9.7 M☉
📍 1523 ly away, near the hero’s shoulder
Visible to the naked eye (mag 4.37)
#StarNames #WGSN #Ramus #Hercules #IAU
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🟡 Deltoton (Δελτωτόν) – Delta Trianguli
A G0V binary star, 35 ly away 🌟
Named after the Greek “Δ” — echoing Triangulum’s ancient symbolic form
☀️ Sunlike: 0.88 M☉, 0.87 L☉
🔁 Binary (10-day orbit)
✅ IAU-approved 2025
#StarNames #WGSN #Deltoton #GreekAsterism
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🌟 Why was WGSN created?
To standardize star names for science!
🔭 Faint stars: Named via public IAU campaigns
✨ Bright stars: Named from historic & indigenous asterisms
#WGSN #StarNames #IAU
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🌟 New in June 2025:
WGSN adopts star names from Chinese, Greek & Latin traditions — reviving ancient asterisms in Hercules & Triangulum.
✨ Names now in the IAU Star Names Catalog
🔗 exopla.net/star-names
#WGSN #IAU #StarNames
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🗂️ IAU Catalog of Star Names (CSN) = the official list of star names
✨ Includes:
• ASE (Indigenous names)
• NameExoWorlds
• WGSN-id (2025 SIMBAD-based)
🔗 exopla.net/star-names
Typography by sirwatson
#WGSN #StarNames #Astronomy #ASE #SIMBAD
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🔭 WGSN protects cultural star names & maintains the IAU Star Names Catalog (CSN).
🌍 From the All Skies Encyclopaedia, names are chosen with scientific & cultural care.
🔗 exopla.net/star-names
🔗 xing.fmi.uni-jena.de/mediawiki/in...
#WGSN #IAU #StarNames
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α Lupi (HIP 71860) is now officially 'Uridim', preserving the ancient Sumerian term UR.IDIM, The Mad or Rabid Dog. This name reveals that the Wolf constellation was one of the few ancient Greek constellations directly inherited from Babylonian astronomy. #IAU #starnames #WGSN
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Tau Aquilae is now 'Tianfu' (天桴), meaning 'celestial drumstick', near the Drum at Altair in the Milky Way. This ancient Chinese asterism predates the Tang Dynasty and was one of four original stars. #IAU #starnames #WGSN
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HIP 113288 is now 'Tengshe', which preserves the Chinese constellation name 螣蛇 (Flying Serpent) for one of its stars, dating back to the 2nd century BCE — a remarkable example of ancient Chinese celestial cartography surviving in our modern nomenclature. #IAU #starnames #WGSN
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α Lacertae (HIP 111169) receives the classical name 'Stellio', recognising Hevelius's original Latin designation for the Lizard constellation. The brightest star in Lacerta now carries the alternative name from its constellation's creator. #IAU #starnames #WGSN
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58 Hydrae (HIP 72571) is now 'Solitaire', preserving Le Monnier's 1776 invention of the constellation 'Turdus Solitarius'. Originally commemorating the extinct Rodrigues Solitaire bird, this name connects astronomical and natural history. #IAU #starnames #WGSN
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ρ Leonis (HIP 51624) is now 'Shaomin' (少民), meaning 'less bright' in Chinese tradition. With Taimin (太民), 'more bright' (IAU-name: Subra), it formed part of the Yellow Emperor's Xuanyuan dragon constellation. #IAU #starnames #WGSN
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88 Aquarii is now 'Safina' (سفينة), part of an Arabian ship constellation between Diphda and Fomalhaut. The area had been linked to water themes in Mediterranean and Arabic astronomy. #IAU #starnames #WGSN
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