✨ 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
✨ 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
🔴 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
🔴 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
⚪️ Shēngōng (神宫) – HIP 83100
A white giant star in Scorpius, once known in Chinese uranography as the Divine Palace, part of the Tail of the Azure Dragon.
Its soft Milky Way glow was seen as a sacred hall among the stars.
IAU-Adopted(2025).
#Shengong #ChineseAstronomy #WGSN #CulturalAstronomy
🔴 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
🔴On 4th October, the chair of WGSN participated in the 24 Hours Live event at Akashi Planetarium (Japan), part of 100 Hours of Astronomy, @susanne-m-hoffmann.bsky.social explained how stars are officially named by the IAU followed by a public Q&A hosted by IAU-OAO.
#IAU #WGSN #Astronomy
🌟 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
🔵 Rasalnaqa (ι And) – HIP 116631
Arabic “Head of the She-Camel” 🐪 — in Arabian sky traditions, blended with Greek Andromeda 🌌
B8V blue-white main-sequence star:
🌡️ 12,620 K | 3.1 M☉ | 4.6 R☉ | mag 4.29 | 502 ly
~116 Myr old
✅ IAU-approved 2025
#WGSN #IAU #Rasalnaqa #ArabicStarNames #Andromeda
🟠 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
🔵 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
🟠 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
🟡 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
🔵 Alfarasalkamil (الفرس الكامل) – HIP 113726
"The Complete Horse" — from early Arabic & Babylonian sky lore
📍 In Andromeda’s left arm
🔭 B6IV blue subgiant
💡 Mag 3.62 | 692 ly
☀️ ~1,900× Sun's luminosity
Named by IAU in 2025, celebrating ancient star traditions beyond Pegasus.
#wgsn #iau #starname
🌟 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
🌟 New IAU Star Names – June 2025
✨ Cultural names from China, Greece & Rome now official!
🆕 Bodu – 95 Her (Han dynasty)
🆕 Tusizuo – 109 Her (Tú Sì asterism)
🆕 Ramus – 102 Her (Latin “branch”)
🆕 Deltoton – Delta Tri (Greek Δ)
🔗 exopla.net/star-names
#WGSN #IAU
🟠 Tusizuo (屠肆左) – 109 Her
"Left Star of the Butcher’s Shop" from Han dynasty asterism Tú Sì 🐂
🌟 K2III red giant | 3.84 mag | 128 ly
☀️ 52× Sun’s luminosity
📍 Between Hercules’ hand & head
#Tusizuo #IAUStarNames #ChineseAsterism #WGSN #109Her
🔵 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
🟡 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
🌟 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
⚪ Bodu (帛度) – 95 Her
A luminous white subgiant (A2IV), named after a Han dynasty textile ruler asterism 🌟
✨ 167× Sun's luminosity, 432 ly away
🧵 IAU-approved June 2025
#Bodu #IAUStarNames #WGSN #ChineseAsterism #95Her #SkyHeritage
🌟 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
🗂️ 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
🔭 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
FYI: WGSN acquires IWSR to strengthen position in global beverage alcohol data and trend forecasting #WGSN #IWSR #BeverageIndustry #AlcoholTrends #MarketInsights
Movimiento clave en el sector: WGSN adquiere IWSR para liderar la analítica de datos #WGSN #IWSR #analíticadedatos #cienciadedatos #serviciospredictivos
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
