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NameExoWorlds (also known as IAU NameExoWorlds) is the name of various projects managed by the International Astronomical Union (I.A.U.) to encourage names to be submitted for astronomical objects, which would later be considered for official adoption by the organization.

The first such project (NameExoWorlds I), in 2015, regarded the naming of stars and exoplanets. 573,242 votes were submitted by members by the time the contest closed on October 31, 2015, and the names of 31 exoplanets and 14 stars were selected from these. Many of the names chosen were based on world history, mythology and literature. In June 2019, another such project (NameExoWorlds II), in celebration of the organization's hundredth anniversary, in a project officially called IAU100 NameExoWorlds, welcomed countries of the world to submit names for exoplanets and their host stars. A star with an exoplanet was assigned to each country, and members of the public submitted names for them.

In August 2022, the third NameExoWorlds project was announced, which gave names to 20 exoplanets and their host stars, all of which are targets for observation by the James Webb Space Telescope. The names were announced in June 2023.

See also

• Astronomical naming conventions
• IAU Working Group on Star Names
• List of proper names of exoplanets
• List of proper names of stars
• Proper names (astronomy)
• Stellar designations and names
• Stars named after people

References

1. Overbye, Dennis (2 December 2016). "Twinkle, Twinkle Little [Insert Name Here]". The New York Times. Retrieved 15 June 2019.
2. Pasachoff, Jay M.; Filippenko, Alex (11 July 2019). The Cosmos: Astronomy in the New Millennium. Cambridge University Press. pp. 658–659. ISBN 978-1-108-43138-5.
3. Jones, Brian (19 October 2019). Yearbook of Astronomy 2020. Pen and Sword. ISBN 978-1-5267-5328-1.
4. Staff (2019). "IAU100 Name ExoWorlds - name ExoWorlds II". International Astronomical Union. Retrieved 15 June 2019.
5. Staff (6 June 2019). "Name an Exoplanet - IAU100 NameExoWorlds gives every country in the world the opportunity to name an exoplanet and its host star". International Astronomical Union. Retrieved 15 June 2019.
6. Overbye, Dennis (14 June 2019). "So Long, Exoplanet HD 17156b. Hello ... Sauron?". The New York Times. Retrieved 15 June 2019.
7. Kaufman, Marc (7 June 2019). "A Grand Global Competition to Name 100 ExoWorlds". ManyWorlds.Space. Retrieved 15 June 2019.
8. "NameExoWorlds 2022". nameexoworlds.iau.org. IAU. 8 August 2022. Retrieved 25 August 2022.
9. "Thai names chosen for distant stars". Bangkok Post. 9 June 2023. Retrieved 17 October 2023.

External links

• Official WebSite; Naming rules; Voting statistics; 2015 winners; 2019 contest
• "SIMBAD Astronomical Database". Centre de Données astronomiques de Strasbourg. Retrieved 15 June 2019.
• "NStars database". NASA. Archived from the original on 1 November 2005. Retrieved 15 June 2019.
• "ARICNS". Astronomisches Rechen-Institut. Archived from the original on 14 October 2005. Retrieved 15 June 2019.

v t e Exoplanets
Planet Definition IAU Planetary science
Main topics	Exoplanet Exoplanet orbital and physical parameters Methods of detecting exoplanets Planetary system Planet-hosting stars
Sizes and types	Terrestrial Carbon planet Coreless planet Desert planet Dwarf planet Hycean planet Ice planet Iron planet (Super-Mercury) Lava planet Ocean world Mega-Earth Sub-Earth Super-Earth Gaseous Eccentric Jupiter Mini-Neptune (Gas dwarf) Helium planet Hot Jupiter Hot Neptune Gas giant Ice giant Super-Jupiter Super-Neptune Super-puff Ultra-hot Jupiter Ultra-hot Neptune Other types Blanet Brown dwarf Chthonian planet Circumbinary planet Circumtriple planet Disrupted planet Double planet Ecumenopolis Eyeball planet Giant planet Mesoplanet Planemo Planet/Brown dwarf boundary Planetesimal Protoplanet Pulsar planet Sub-brown dwarf Sub-Neptune Toroidal planet Ultra-cool dwarf Ultra-short period planet (USP)
Formation and evolution	Accretion Accretion disk Asteroid belt Circumplanetary disk Circumstellar disc Circumstellar envelope Cosmic dust Debris disk Detached object Disrupted planet Excretion disk Exozodiacal dust Extraterrestrial materials Extraterrestrial sample curation Giant-impact hypothesis Gravitational collapse Hills cloud Internal structure Interplanetary dust cloud Interplanetary medium Interplanetary space Interstellar cloud Interstellar dust Interstellar medium Interstellar space Kuiper belt List of interstellar and circumstellar molecules Merging stars Molecular cloud Nebular hypothesis Oort cloud Outer space Planetary migration Planetary system Planetesimal Planet formation Protoplanetary disk Ring system Rubble pile Sample-return mission Scattered disc Star formation
Systems	Exocomet Interstellar Exomoon Tidally detached Rogue planet Orbits Retrograde Trojan Mean-motion resonances Titius–Bode law
Host stars	A B Binary star Brown dwarfs F/Yellow-white dwarfs G/Yellow dwarfs Herbig Ae/Be K/Orange dwarfs M/Red dwarfs Pulsar Red giant Subdwarf B Subgiant T Tauri White dwarfs Yellow giants
Detection	Astrometry Direct imaging list Microlensing list Polarimetry Timing list Radial velocity list Transit method list Transit-timing variation
Habitability	Astrobiology Astrooceanography Circumstellar habitable zone Earth analog Extraterrestrial liquid water Galactic habitable zone Habitability of binary star systems Habitability of F-type main-sequence star systems Habitability of K-type main-sequence star systems Habitability of natural satellites Habitability of neutron star systems Habitability of red dwarf systems Habitability of yellow dwarf systems Habitable zone for complex life List of potentially habitable exoplanets Tholin Superhabitable planet
Catalogues	Nearby Habitable Systems Exoplanet Data Explorer Extrasolar Planets Encyclopaedia NASA Exoplanet Archive NASA Star and Exoplanet Database Open Exoplanet Catalogue
Lists	Exoplanetary systems Host stars Multiplanetary systems Stars with proto-planetary discs Exoplanets Discoveries Extremes Firsts Nearest Largest Heaviest Terrestrial candidates Kepler 1–500 501–1000 1001–1500 1501–2000 K2 Potentially habitable Proper names Discovered exoplanets by year before 2000 2000–2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Other	Carl Sagan Institute Exoplanet naming convention Exoplanet phase curves Exoplanetary Circumstellar Environments and Disk Explorer Extragalactic planet Extrasolar planets in fiction Geodynamics of terrestrial exoplanets Neptunian desert Nexus for Exoplanet System Science Planets in globular clusters Small planet radius gap Sudarsky's gas giant classification
Discoveries of exoplanets Search projects

• Astronomy
• Solar System
• Space
• Star

• Lists of exoplanets
• Lists of names
• Lists of stars