Annotated map of Charon, with IAU-approved names for features as of 2018

The geological features of Charon, the largest moon of Pluto, are being mapped by scientists using data from the New Horizons spacecraft. The team has given provisional names to the most prominent.

As of April 2020, only some of the names have been officially recognized by the International Astronomical Union, which has agreed that names for features on Charon should come from the following:[1][2]

Some features discovered by the New Horizons mission have been given provisional names based on various science fiction and fantasy franchises, including Star Wars, Star Trek, Doctor Who, Alien, Firefly, and Macross.[3] These names remain unofficial until accepted by the IAU.

On 11 April 2018, the IAU announced that several of the feature names had been officially recognized.[4]

Terrae

A terra is an extensive landmass or highland. Charon's only highland region is named after a fictional destination.

Feature Named after Details Name approved
(Date · Ref)
Oz Terra[5] Land of Oz The setting for L. Frank Baum's The Wonderful Wizard of Oz children's novel —

Dorsa

A dorsum is a ridge. Charon's only dorsum is named after an author.

Feature Named after Details Name approved
(Date · Ref)
McCaffrey Dorsum Anne McCaffrey American-Irish science fiction author, best known for the Dragonriders of Pern series 2020-08-05 · WGPSN

Maculae

A macula is a dark spot. Charonian maculae are being named after fictional destinations.

Feature Named after Details Name approved
(Date · Ref)
Gallifrey Macula Gallifrey Planet in the Doctor Who series —
Mordor Macula Mordor Land in the Tolkien mythology —

Plana

A planum is a plateau or an elevated plain, Charon's only planum is named after a fictional destination.

Feature Named after Details Name approved
(Date · Ref)
Vulcan Planum Vulcan Planet in the Star Trek series —

Montes

A mons is a mountain. Montes on Charon are being named after authors and artists.

Feature Named after Details Name approved
(Date · Ref)
Butler Mons Octavia E. Butler science-fiction author 2018-04-11 · WGPSN
Clarke Montes Arthur C. Clarke science-fiction author 2018-04-11 · WGPSN
Kubrick Mons Stanley Kubrick film director 2018-04-11 · WGPSN

Chasmata

A chasma is a deep, elongated, steep-sided depression. Charonian chasmata are being named after vessels in fiction.

Feature Named after Details Name approved
(Date · Ref)
Argo Chasma Argo ship in the Greek myth of Jason and the Argonauts, as well as the spaceship in the English translation of the Space Battleship Yamato anime series 2018-04-11 · WGPSN
Caleuche Chasma Caleuche mythological ghost ship that travels the seas around the small island of Chiloé Island, off the coast of Chile, collecting the dead, who then live aboard it forever 2018-04-11 · WGPSN
Macross Chasma SDF-1 Macross spaceship in the Macross anime series —
Mandjet Chasma[6] Mandjet solar boat of the ancient Egyptian sun god Ra 2018-04-11 · WGPSN
Nostromo Chasma Nostromo spaceship in the Alien films —
Serenity Chasma Serenity spaceship in the Firefly series —
Tardis Chasma TARDIS spaceship/timeship in the Doctor Who series —

Craters

Photo of Charon centered on Ripley Crater. Nostromo Chasma crosses Ripley vertically. Vader is the dark crater at 12:00, Organa Crater is at 9:00, Skywalker Crater at 8:00, Gallifrey Macula and Tardis Chasma at 4:00.

Craters on Charon are named after characters associated with science fiction and fantasy.

Feature Named after Details Name approved
(Date · Ref)
Alice Alice protagonist of two novels by Lewis Carroll —
Cora Cora protagonist of The Underground Railroad by Colson Whitehead 2020-08-05 · WGPSN
Dorothy[7] Dorothy Gale protagonist of the Oz novels by L. Frank Baum 2018-04-11 · WGPSN
Kaguya-Hime Kaguya-Hime princess from the Moon in a Japanese folk tale —
Kirk James T. Kirk character in the Star Trek series —
Organa Leia Organa character in the Star Wars films —
Nasreddin Nasreddin Sufi traveller from folklore 2018-04-11 · WGPSN
Nemo Captain Nemo character in novels by Jules Verne 2018-04-11 · WGPSN
Pirx Pilot Pirx main character in short stories by Stanisław Lem 2018-04-11 · WGPSN
Revati Revati main character in the Hindu epic narrative Mahabharata 2018-04-11 · WGPSN
Ripley Ellen Ripley character in the Alien films —
Sadko Sadko adventurer who traveled to the bottom of the sea in the medieval Russian epic Bylina 2018-04-11 · WGPSN
Skywalker Luke Skywalker character in the Star Wars films —
Spock Spock character in the Star Trek series —
Sulu Hikaru Sulu character in the Star Trek series —
Uhura Nyota Uhura character in the Star Trek series —
Vader Darth Vader character in the Star Wars films —

See also

References

  1. ^ "Naming of Astronomical Objects". www.iau.org. IAU General Assembly 2018. Retrieved 3 April 2018.
  2. ^ "Official Naming of Surface Features on Pluto and its Satellites". www.iau.org. IAU General Assembly 2018. Retrieved 3 April 2018.
  3. ^ Brown, Andrew R.; Byrd, Deborah (August 2015). "First maps of Charon and Pluto". earthsky.org. EarthSky Communications Inc. Retrieved 3 April 2018.
  4. ^ "Pluto's Largest Moon, Charon, Gets Its First Official Feature Names". www.iau.org. IAU General Assembly 2018. Retrieved 11 April 2018.
  5. ^ Singer, Kelsi. "New Horizons: Peering into Pluto's Past". New Horizons. Lunar and Planetary Science Conference. Archived from the original on 2017-05-10. Retrieved March 21, 2016.
  6. ^ Moore, Jeffrey M.; McKinnon, William B.; Spencer, John R.; Howard, Alan D.; Schenk, Paul M.; Beyer, Ross A.; Nimmo, Francis; Singer, Kelsi N.; Umurhan, Orkan M. (2016-03-18). "The geology of Pluto and Charon through the eyes of New Horizons". Science. 351 (6279): 1284–1293. arXiv:1604.05702. Bibcode:2016Sci...351.1284M. doi:10.1126/science.aad7055. ISSN 0036-8075. PMID 26989245. S2CID 206644622.
  7. ^ Grundy, W. M.; et al. (2016). "Surface compositions across Pluto and Charon". Science. 351 (6279). Science 351: aad9189. arXiv:1604.05368. Bibcode:2016Sci...351.9189G. doi:10.1126/science.aad9189. PMID 26989260. S2CID 1247225.

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