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Planetary nomenclature

Planetary nomenclature, like terrestrial nomenclature, is a system of uniquely identifying features on the surface of a planet or natural satellite so that the features can be easily located, described, and discussed. Since the invention of the telescope, astronomers have given names to the surface features they have discerned, especially on the Moon and Mars. To found an authority on planetary nomenclature, the International Astronomical Union (IAU) was organized in 1919 to designate and standardize names for features on Solar System bodies.[1]

The heart-shaped Tombaugh Regio, on Pluto, is named after the planet's discoverer Clyde Tombaugh.
A map of the Moon from Andrees Allgemeiner Handatlas, 1st edition (1881), predating IAU conventions

How names are approved by the IAU edit

When images are first obtained of the surface of a planet or satellite, a theme for naming features is chosen and a few important features are named, usually by members of the appropriate IAU task group (a commonly accepted planet-naming group). Later, as higher resolution images and maps become available, additional features are named at the request of investigators mapping or describing specific surfaces, features, or geologic formations. Anyone may suggest that a specific name be considered by a task group. If the members of the task group agree that the name is appropriate, it can be retained for use when there is a request from a member of the scientific community for a name of a specific feature. Names that pass review by a task group are submitted to the IAU Working Group for Planetary System Nomenclature (WGPSN). Once approved by the WGPSN, names are considered official and can be used on maps and in publications. They are also listed in the Gazetteer of Planetary Nomenclature.[2]

IAU rules and conventions edit

Names adopted by the IAU must follow various rules and conventions established and amended through the years by the Union. These include:[3]

  1. Nomenclature is a tool and the first consideration should be to make it simple, clear, and unambiguous.
  2. In general, official names will not be given to features whose longest dimensions are less than 100 meters, although exceptions may be made for smaller features having exceptional scientific interest.
  3. The number of names chosen for each body should be kept to a minimum. Features should be named only when they have special scientific interest, and when the naming of such features is useful to the scientific and cartographic communities at large.
  4. Duplication of the same surface feature name on two or more bodies, and of the same name for satellites and minor planets, is discouraged. Duplications may be allowed when names are especially appropriate and the chances for confusion are very small.
  5. Individual names chosen for each body should be expressed in the language of origin. Transliteration for various alphabets should be given, but there will be no translation from one language to another.
  6. Where possible, the themes established in early solar system nomenclature should be used and expanded on.
  7. Solar system nomenclature should be international in its choice of names. Recommendations submitted to the IAU national committees will be considered, but final selection of the names is the responsibility of the International Astronomical Union. Where appropriate, the WGPSN strongly supports an equitable selection of names from ethnic groups, countries, and gender on each map; however, a higher percentage of names from the country planning a landing is allowed on landing site maps.
  8. No names having political, military or (modern) religious significance may be used, except for names of political figures prior to the 19th century.
  9. Commemoration of persons on planetary bodies should not normally be a goal in itself, but may be employed in special circumstances and is reserved for persons of high and enduring international standing. Persons being so honored must have been deceased for at least three years.
  10. When more than one spelling of a name is extant, the spelling preferred by the person, or used in an authoritative reference, should be used. Diacritical marks are a necessary part of a name and will be used.
  11. Ring and ring-gap nomenclature and names for newly discovered satellites are developed in joint deliberation between WGPSN and IAU Commission 20. Names will not be assigned to satellites until their orbital elements are reasonably well known or definite features have been identified on them.
  12. Accessible and authoritative sources, including Internet sources, are required for adopted names. Wikipedia is not sufficient as a source, but may be useful for identifying appropriate sources.

In addition to these general rules, each task group develops additional conventions as it formulates an interesting and meaningful nomenclature for individual planetary bodies.

Naming conventions edit

Names for all planetary features include a descriptor term, with the exception of two feature types. For craters, the descriptor term is implicit. Some features named on Io and Triton do not carry a descriptor term because they are ephemeral.

In general, the naming convention for a feature type remains the same regardless of its size. Exceptions to this rule are valleys and craters on Mars and Venus; naming conventions for these features differ according to size.

One feature classification, regio, was originally used on early maps of the Moon and Mercury (drawn from telescopic observations) to describe vague albedo features. It is now used to delineate a broad geographic region.

Named features on bodies so small that coordinates have not yet been determined are identified on drawings of the body that are included in the IAU Transactions volume of the year when the names were adopted. Satellite rings and gaps in the rings are named for scientists who have studied these features; drawings that show these names are also included in the pertinent Transactions volume. Names for atmospheric features are informal at present; a formal system will be chosen in the future.

The boundaries of many large features (such as terrae, regiones, planitiae and plana) are not topographically or geomorphically distinct; the coordinates of these features are identified from an arbitrarily chosen center point. Boundaries (and thus coordinates) may be determined more accurately from geochemical and geophysical data obtained by future missions.

During active missions, small surface features are often given informal names. These may include landing sites, spacecraft impact sites, and small topographic features, such as craters, hills, and rocks. Such names will not be given official status by the IAU, except as provided for by Rule 2 above. As for the larger objects, official names for any such small features would have to conform to established IAU rules and categories.

Descriptor terms (feature types) edit

Feature Pronunciation[note 1] Description Designation
Albedo feature /ælˈbd/ An area which shows a contrast in brightness or darkness (albedo) with adjacent areas. This term is implicit. AL
Arcus, arcūs /ˈɑːrkəs/ Arc: curved feature AR
Astrum, astra /ˈæstrəm/, /ˈæstrə/ Radial-patterned features on Venus AS
Catena, catenae /kəˈtnə/, /kəˈtn/ A chain of craters e.g. Enki Catena. CA
Cavus, cavi /ˈkvəs/, /ˈkv/ Hollows, irregular steep-sided depressions usually in arrays or clusters CB
Chaos /ˈkɒs/ A distinctive area of broken or jumbled terrain e.g. Iani Chaos. CH
Chasma, chasmata /ˈkæzmə/, /ˈkæzmətə/ Deep, elongated, steep-sided depression e.g. Eos Chasma. CM
Collis, colles /ˈkɒlɪs/, /ˈkɒlz/ A small hill or knob. CO
Corona, coronae /kɒˈrnə/, /kɒˈrn/ An oval feature. Used only on Venus and Miranda. CR
Crater, craters /ˈkrtər/ A circular depression (in most cases created by impact event). This term is implicit. AA
Dorsum, dorsa /ˈdɔːrsəm/, /ˈdɔːrsə/ Ridge, sometimes called a wrinkle ridge e.g. Dorsum Buckland. DO
Eruptive center An active volcano on Io. This term is implicit. ER
Facula, faculae /ˈfækjʊlə/, /ˈfækjʊl/ Bright spot FA
Farrum, farra /ˈfærəm/, /ˈfærə/ Pancake-like structure, or a row of such structures. Used only on Venus. FR
Flexus, flexūs /ˈflɛksəs/ Very low curvilinear ridge with a scalloped pattern FE
Fluctus, fluctūs /ˈflʌktəs/, /flʌkˈts/ Terrain covered by outflow of liquid. Used on Venus, Io, Titan, and Mars. FL
Flumen, flumina /ˈflmɪn/, /ˈflmɪnə/ Channel on Titan that might carry liquid FM
Fossa, fossae /ˈfɒsə/, /ˈfɒs/ Long, narrow, shallow depression FO
Fretum, freta /ˈfrtəm/, /ˈfrtə/ Strait of liquid connecting two larger areas of liquid. Used only on Titan. FT
Insula, insulae /ˈɪnsjlə/, /ˈɪnsjl/ Island (islands), an isolated land area (or group of such areas) surrounded by, or nearly surrounded by, a liquid area (sea or lake). Used only on Titan. IN
Labes, labēs /ˈlbɪs/, /ˈlbz/ Landslide debris. Used only on Mars and 1 Ceres. LA
Labyrinthus, labyrinthi /læbɪˈrɪnθəs/, /læbɪˈrɪnθ/ Complex of intersecting valleys or ridges. LB
Lacuna, lacunae /ləˈkjuːnə/, /ləˈkjuːn/ Irregularly shaped depression having the appearance of a dry lake bed. Used only on Titan. LU
Lacus, lacūs /ˈlkəs/ A "lake" or small plain on Moon and Mars; on Titan, a "lake" of dark material thought to be liquid hydrocarbons or a small, dark plain with discrete, sharp boundaries. LC
Landing site name Lunar features at or near Apollo landing sites LF
Large ringed feature Cryptic ringed features LG
Lenticula, lenticulae /lɛnˈtɪkjʊlə/, /lɛnˈtɪkjʊl/ Small dark spots on Europa LE
Linea, lineae /ˈlɪnə/, /ˈlɪn/ Dark or bright elongate marking, may be curved or straight LI
Lingula, lingulae /ˈlɪŋɡjʊlə/, /ˈlɪŋɡjʊl/ Extension of plateau having rounded lobate or tongue-like boundaries LN
Lobus Lobes of contact binaries. Currently used only on Arrokoth. LO
Macula, maculae /ˈmækjʊlə/, /ˈmækjʊl/ Dark spot, may be irregular MA
Mare, maria /ˈmɑːr, -/, /ˈmɑːriə/ A "sea": on the Moon, a low albedo, relatively smooth plain, generally of large extent; on Mars, dark albedo area, e.g. Mare Erythraeum; on Titan, large expanses of dark materials thought to be liquid hydrocarbons, e.g. Ligeia Mare. ME
Mensa, mensae /ˈmɛnsə/, /ˈmɛns/ A flat-topped prominence with cliff-like edges, i.e. a mesa. MN
Mons, montes /ˈmɒnz/, /ˈmɒntz/ Mons refers to a mountain. Montes refers to a mountain range. MO
Oceanus /ˈsənəs/ Very large dark area. The only feature with this designation is Oceanus Procellarum. OC
Palus, paludes /ˈpləs/, /pəˈljdz/ "Swamp"; small plain. Used on the Moon and Mars. PA
Patera, paterae /ˈpætərə/, /ˈpætər/ Irregular crater, or a complex one with scalloped edges e.g. Ah Peku Patera. Usually refers to the dish-shaped depression atop a volcano. PE
Planitia, planitiae /pləˈnɪʃə/, /pləˈnɪʃ/ Low plain e.g. Amazonis Planitia. PL
Planum, plana /ˈplnəm/, /ˈplnə/ A plateau or high plain e.g. Planum Boreum. PM
Plume, plumes /ˈplm/ A cryovolcanic feature on Triton. This term is currently unused. PU
Promontorium, promontoria /prɒmənˈtɔːriəm/, /prɒmənˈtɔːriə/ "Cape"; headland. Used only on the Moon. PR
Regio, regiones /ˈri/, /rɛiˈnz/ Large area marked by reflectivity or color distinctions from adjacent areas, or a broad geographic region RE
Reticulum, reticula /rɪˈtɪkjʊləm/, /rɪˈtɪkjʊlə/ reticular (netlike) pattern on Venus RT
Rima, rimae /ˈrmə/, /ˈrm/ Fissure. Used only on the Moon and 21 Lutetia. RI
Rupes, rupēs /ˈrpɪs/, /ˈrpz/ Scarp RU
Saxum, saxa /ˈsæksəm/, /ˈsæksə/ Boulder or rock SA
Satellite feature A feature that shares the name of an associated feature, for example Hertzsprung D. SF
Scopulus, scopuli /ˈskɒpjʊlə/, /ˈskɒpjʊl/ Lobate or irregular scarp SC
Serpens, serpentes /ˈsɜːrpənz/, /sərˈpɛntz/ Sinuous feature with segments of positive and negative relief along its length SE
Sinus, sinūs /ˈsnəs/ "Bay"; small plain on Moon or Mars, e.g. Sinus Meridiani; On Titan, bay within bodies of liquid. SI
Sulcus, sulci /ˈsʌlkəs/, /ˈsʌls/ Subparallel furrows and ridges SU
Terra, terrae /ˈtɛrə/, /ˈtɛr/ Extensive land mass e.g. Arabia Terra, Aphrodite Terra. TA
Tessera, tesserae /ˈtɛsərə/, /ˈtɛsər/ An area of tile-like, polygonal terrain. This term is used only on Venus. TE
Tholus, tholi /ˈθləs/, /ˈθl/ Small domical mountain or hill e.g. Hecates Tholus. TH
Undae, undae /ˈʌnd/ A field of dunes. Used on Venus, Mars and Titan. UN
Vallis, valles /ˈvælɪs/, /ˈvælz/ A valley e.g. Valles Marineris. VA
Vastitas, vastitates /ˈvæstɪtəs/, /væstɪˈttz/ An extensive plain. The only feature with this designation is Vastitas Borealis. VS
Virga, virgae /ˈvɜːrɡə/, /ˈvɜːr/ A streak or stripe of color. This term is currently used only on Titan. VI

Categories for naming features on planets and satellites edit

Mercury edit

 
Examples of Mercurian nomenclature from the Kuiper quadrangle.
Feature type Current list Naming convention
Catenae list [1] Radio telescope facilities
Craters list [2] Famous deceased artists, musicians, painters, authors
Dorsa list [3] Astronomers who made detailed studies of the planet
Facula list [4] The word 'snake' in various languages
Fossae list [5] Significant works of architecture
Montes list [6] Words for "hot" in various languages. Only one mountain range is currently named: Caloris Montes, from Latin word for "heat"
Planitiae list [7] Names for Mercury (either planet or god) in various languages. Two exceptions exist.
Rupēs list [8] Ships of discovery or scientific expeditions
Valles list [9] Abandoned cities, towns or settlements of antiquity

Venus edit

All but three features on Venus are named after female personages (goddesses and historical or mythological women). These three exceptions were named before the convention was adopted, being respectively Alpha Regio, Beta Regio, and Maxwell Montes which is named after James Clerk Maxwell.

Feature type Current list Naming convention
Astra none [10] Goddesses, miscellaneous
Chasmata list [11] Goddesses of hunt; moon goddesses
Colles list [12] Sea goddesses
Coronae list [13] Fertility and earth goddesses
Craters list [14] Over 20 km, famous women; under 20 km, common female first names
Dorsa list [15] Sky goddesses
Farra list [16] Water goddesses
Fluctūs list [17] Goddesses, miscellaneous
Fossae list [18] Goddesses of war
Labyrinthi list [19] Goddesses, miscellaneous
Lineae list [20] Goddesses of war
Montes list [21] Goddesses, miscellaneous (also one radar scientist)
Paterae list [22] Famous women
Planitiae list [23] Mythological heroines
Plana list [24] Goddesses of prosperity
Regiones list [25] Giantesses and Titanesses (also two Greek alphanumeric)
Rupēs list [26] Goddesses of hearth and home
Terrae list [27] Goddesses of love
Tesserae list [28] Goddesses of fate and fortune
Tholi list [29] Goddesses, miscellaneous
Undae list [30] Desert goddesses
Valles list [31] Word for planet Venus in various world languages (400 km and longer); river goddesses (less than 400 km in length)

The Moon edit

Feature type Naming convention
Craters Craters are generally named after deceased scientists, scholars, artists and explorers who have made outstanding or fundamental contributions to their field. Additionally, craters in or around Mare Moscoviense are named after deceased Russian cosmonauts and craters in and around Apollo crater are named after deceased American astronauts (see Space accidents and incidents). This convention may be extended if other space-faring countries suffer fatalities in spaceflight.
Lacūs, Maria, Paludes, Sinūs These features are assigned names which are Latin terms describing weather and other abstract concepts.
Montes Montes are named after terrestrial mountain ranges or nearby craters.
Rupēs Rupēs are named after nearby mountain ranges (see above).
Valles Valles are named after nearby features.
Others Features that don't fall into any of the above categories are named after nearby craters.

Mars and martian satellites edit

Mars edit

 
Early map of Mars by Giovanni Schiaparelli, which depicts classical albedo features
Feature type Naming convention
Large craters Deceased scientists who have contributed to the study of Mars; writers and others who have contributed to the lore of Mars
Small craters Villages of the world with a population of less than 100,000.
Large valles Name for Mars/star in various languages
Small valles Classical or modern names of rivers
Other features From nearest named albedo feature on Schiaparelli or Antoniadi maps. See Classical albedo features on Mars for a list.

When space probes have landed on Mars, individual small features such as rocks, dunes, and hollows have often been given informal names. Many of these are frivolous: features have been named after ice cream (such as Cookies N Cream); cartoon characters (such as SpongeBob SquarePants and Patrick); and 1970s music acts (such as ABBA and the Bee Gees).[4]

Deimos edit

 
The two named craters on Deimos

Features on Deimos are named after authors who wrote about Martian satellites. There are currently two named features on Deimos – Swift crater and Voltaire crater – after Jonathan Swift and Voltaire who predicted the presence of Martian moons.

Phobos edit

All features on Phobos are named after scientists involved with the discovery, dynamics, or properties of the Martian satellites or people and places from Jonathan Swift's Gulliver's Travels.

Satellites of Jupiter edit

Amalthea edit

People and places associated with the Amalthea myth.

Thebe edit

Features on Thebe are named after people and places associated with the Thebe myth. There is only one named feature on Thebe – Zethus Crater.

Io edit

Feature type Naming convention
Active eruptive centers Active volcanoes on Io are named after fire, sun or thunder gods or heroes.
Catenae Crater chains are named after Sun gods.
Fluctūs Names of fluctūs are derived from a nearby named feature, fire, sun, thunder or volcano gods, goddesses and heroes or mythical blacksmiths.
Mensae, Montes, Plana, Regiones and Tholi These features can be named after places associated with Io mythology, derived from nearby named features, or places from Dante's Inferno
Paterae Paterae on Io are named after fire, sun, thunder or volcano gods, heroes or goddesses or mythical blacksmiths.
Valles Names of valleys are derived from nearby named features.

Europa edit

Feature type Naming convention
Chaos Places associated with Celtic myths
Craters Celtic gods and heroes
Flexūs Places associated with the Europa myth
Large ringed features Celtic stone circles
Lenticulae Celtic gods and heroes
Lineae People associated with the Europa myth
Maculae Places associated with the Europa myth
Regiones Places associated with Celtic myths

Ganymede edit

Feature type Naming convention
Catenae, craters Gods and heroes of ancient Middle Eastern civilizations
Faculae Places associated with Egyptian myths
Fossae Gods (or principals) of ancient Fertile Crescent people
Paterae Paterae on Ganymede are named after wadis in the Middle East.
Regiones Astronomers who discovered Jovian satellites
Sulci Places associated with myths of ancient people

Callisto edit

Feature type Naming convention
Large ringed features Homes of the gods and of heroes
Craters Heroes and heroines from northern myths
Catenae Mythological places in high latitudes

Satellites of Saturn edit

Janus edit

People from myth of Castor and Pollux (twins)

Epimetheus edit

People from myth of Castor and Pollux (twins)

Mimas edit

People and places from Malory's Le Morte d'Arthur legends (Baines translation)

Enceladus edit

People and places from Burton's Arabian Nights

Tethys edit

People and places from Homer's Odyssey

Dione edit

Locations from Roman mythology, or people and places from Virgil's Aeneid

Rhea edit

People and places from creation myths

Titan edit

Feature type Naming convention
Albedo features, terrae Sacred or enchanted places, paradise, or celestial realms from legends, myths, stories, and poems of cultures from around the world
Colles Names of characters from Middle-earth, the fictional setting in fantasy novels by English author J.R.R. Tolkien (1892–1973)
Craters and ringed features Gods and goddesses of wisdom
Facula and faculae Facula: Names of islands on Earth that are not politically independent, Faculae: Names of archipelagos
Fluctūs Gods and goddesses of beauty
Flumina Names of mythical or imaginary rivers
Freta Names of characters from the Foundation series of science fiction novels by American author Isaac Asimov (1920–1992)
Insulae Names of islands from legends and myths
Lacūs and lacunae Lakes on Earth, preferably with a shape similar to the lacus or lacuna on Titan
Mare and maria Sea creatures from myth and literature
Montes Names of mountains and peaks from Middle-earth, the fictional setting in fantasy novels by English author J.R.R. Tolkien (1892–1973)
Planitiae and labyrinthi Names of planets from the Dune series of science fiction novels by American author Frank Herbert (1920–1986)
Sinūs Names of terrestrial bays, coves, fjords or other inlets
Undae Gods and goddesses of wind
Virgae Gods and goddesses of rain

Hyperion edit

Sun and Moon deities

Iapetus edit

People and places from Sayers' translation of Chanson de Roland; the only exception is Cassini Regio, which is named after its discoverer, Giovanni Cassini.

Phoebe edit

 
Examples of crater nomenclature on Phoebe
Feature type Naming convention
Craters Craters of Phoebe are named after people associated with Phoebe or people from Argonautica by Apollonius Rhodius or Gaius Valerius Flaccus.
Other Non-crater features on Phoebe are named after places from Argonautica.

Satellites of Uranus edit

Satellites of Uranus are named for characters from the works of William Shakespeare.

Puck edit

Mischievous (Pucklike) spirits (class)

Miranda edit

Characters, places from Shakespeare's plays

Ariel edit

Light spirits (individual and class)

Umbriel edit

Dark spirits (individual)

Titania edit

Female Shakespearean characters, places

Oberon edit

Shakespearean tragic heroes and places

Small satellites edit

There are currently no named features on Uranian small satellites, however the naming convention is heroines from plays by Shakespeare and Pope.

Satellites of Neptune edit

Proteus edit

Features on Proteus are to be named after water-related spirits, gods or goddesses who are neither Greek nor Roman. The only named feature on Proteus is crater Pharos.

Triton edit

Geological features on Triton should be assigned aquatic names, excluding those which are Roman and Greek in origin. Possible themes for individual descriptor terms include worldwide aquatic spirits, famous terrestrial fountains or fountain locations, terrestrial aquatic features, famous terrestrial geysers or geyser locations and terrestrial islands.

Nereid edit

There are currently no named features on Nereid. When features are discovered, they are to be named after individual nereids.

Small satellites edit

Features on other satellites of Neptune, once discovered, should be named after gods and goddesses associated with Neptune/Poseidon mythology or generic mythological aquatic beings.

Pluto and satellites edit

 
Informally named geographic features on Pluto

In February 2017, the IAU approved the following themes for surface features on Pluto and its satellites:[5]

Pluto edit

  • Gods, goddesses, and other beings associated with the Underworld from mythology, folklore and literature.
  • Names for the Underworld and for Underworld locales from mythology, folklore and literature.
  • Heroes and other explorers of the Underworld.
  • Scientists and engineers associated with Pluto and the Kuiper Belt.
  • Pioneering space missions and spacecraft.
  • Historic pioneers who crossed new horizons in the exploration of the Earth, sea and sky.

Charon edit

  • Destinations and milestones of fictional space and other exploration.
  • Fictional and mythological vessels of space and other exploration.
  • Fictional and mythological voyagers, travellers and explorers.
  • Authors and artists associated with space exploration, especially Pluto and the Kuiper Belt.

Nix edit

  • Deities of the night.

Hydra edit

  • Legendary serpents and dragons.

Kerberos edit

  • Dogs from literature, mythology, and history.

Styx edit

  • River gods.

Asteroids edit

1 Ceres edit

Feature type Naming convention
Craters Agricultural deities
other Agricultural festivals

4 Vesta edit

Feature type Naming convention
Craters Historical and mythological women of Ancient Rome (in one case, Angioletta, a modern-day female scientist who lived in Rome)
other Festivals of Ancient Rome

243 Ida edit

Feature type Naming convention
Craters Caverns and grottos of the world
Dorsa Galileo project participants
Regiones Discoverer of Ida and places associated with the discoverer

(243) Ida I Dactyl edit

Feature type Naming convention
Craters Idaean dactyls

951 Gaspra edit

Feature type Naming convention
Craters Spas of the world
Regiones Discoverer of Gaspra, and Galileo project participants

253 Mathilde edit

Feature type Naming convention
Craters Coal fields and basins of the world

433 Eros edit

Feature type Naming convention
Craters Mythological, literary, and historical names of lovers
Regiones Discoverers of Eros
Dorsa Scientists who have contributed to the exploration and study of Eros

25143 Itokawa edit

See also edit

Notes edit

  1. ^ Listed pronunciations are conventional or follow the traditional English pronunciation of Latin words. However, some speakers use different (often variable) pronunciations that are closer to the Latin or Greek.

References edit

Citations edit

  1. ^ "History of Planetary Nomenclature". United States Geological Survey. May 17, 2008.
  2. ^ "How Names Are Approved". Gazetteer of Planetary Nomenclature. United States Geological Survey. International Astronomical Union. Retrieved May 6, 2021.
  3. ^ "Planetary Names: IAU Rules and Conventions". United States Geological Survey. International Astronomical Union. Retrieved September 18, 2022.
  4. ^ Chong, Jia-Rui (October 9, 2005). "Map of Mars fills up with strange names". Pittsburgh Post-Gazette. Retrieved April 18, 2008.
  5. ^ "Official Naming of Surface Features on Pluto and its Satellites: First Step Approved". International Astronomical Union. International Astronomical Union. February 23, 2017. Retrieved March 14, 2017.

Sources edit

  •   This article incorporates public domain material from Gazetteer of Planetary Nomenclature. United States Geological Survey. Retrieved September 18, 2022.
  • Whitaker, E. A. (2003). Mapping and Naming the Moon: A History of Lunar Cartography and Nomenclature. ISBN 9780521544146..

Further reading edit

  • Ronald Greeley & Raymond M. Batson (1990). Planetary Mapping. Cambridge University Press. ISBN 0-521-03373-X.

External links edit

  • Gazetteer of Planetary Nomenclature IAU Working Group for Planetary System Nomenclature (WGPSN)
  • , Planetary Society weblog article by Rosaly Lopes, IAU WGPSN member
  • Members of the WGPSN
  • Cartographica 41/2 2006
  • Cartographica 42/2 2007
  • APTN National News interviews Planetary Cartographer John Koulouris,(Esq.) on I.A.U. officially adopted Planetary Surface Feature Nomenclature attributed to Aboriginal Peoples' Cultures, People and Places
  • Planetary Atlas of Venus in the Hellenic (Greek) and English Languages with I.A.U. adopted surface feature nomenclature as of 1984 created by: John A. Koulouris,(Esq.)

planetary, nomenclature, like, terrestrial, nomenclature, system, uniquely, identifying, features, surface, planet, natural, satellite, that, features, easily, located, described, discussed, since, invention, telescope, astronomers, have, given, names, surface. Planetary nomenclature like terrestrial nomenclature is a system of uniquely identifying features on the surface of a planet or natural satellite so that the features can be easily located described and discussed Since the invention of the telescope astronomers have given names to the surface features they have discerned especially on the Moon and Mars To found an authority on planetary nomenclature the International Astronomical Union IAU was organized in 1919 to designate and standardize names for features on Solar System bodies 1 The heart shaped Tombaugh Regio on Pluto is named after the planet s discoverer Clyde Tombaugh A map of the Moon from Andrees Allgemeiner Handatlas 1st edition 1881 predating IAU conventionsContents 1 How names are approved by the IAU 2 IAU rules and conventions 3 Naming conventions 4 Descriptor terms feature types 5 Categories for naming features on planets and satellites 5 1 Mercury 5 2 Venus 5 3 The Moon 5 4 Mars and martian satellites 5 4 1 Mars 5 4 2 Deimos 5 4 3 Phobos 5 5 Satellites of Jupiter 5 5 1 Amalthea 5 5 2 Thebe 5 5 3 Io 5 5 4 Europa 5 5 5 Ganymede 5 5 6 Callisto 5 6 Satellites of Saturn 5 6 1 Janus 5 6 2 Epimetheus 5 6 3 Mimas 5 6 4 Enceladus 5 6 5 Tethys 5 6 6 Dione 5 6 7 Rhea 5 6 8 Titan 5 6 9 Hyperion 5 6 10 Iapetus 5 6 11 Phoebe 5 7 Satellites of Uranus 5 7 1 Puck 5 7 2 Miranda 5 7 3 Ariel 5 7 4 Umbriel 5 7 5 Titania 5 7 6 Oberon 5 7 7 Small satellites 5 8 Satellites of Neptune 5 8 1 Proteus 5 8 2 Triton 5 8 3 Nereid 5 8 4 Small satellites 5 9 Pluto and satellites 5 9 1 Pluto 5 9 2 Charon 5 9 3 Nix 5 9 4 Hydra 5 9 5 Kerberos 5 9 6 Styx 5 10 Asteroids 5 10 1 1 Ceres 5 10 2 4 Vesta 5 10 3 243 Ida 5 10 4 243 Ida I Dactyl 5 10 5 951 Gaspra 5 10 6 253 Mathilde 5 10 7 433 Eros 5 10 8 25143 Itokawa 6 See also 7 Notes 8 References 8 1 Citations 8 2 Sources 9 Further reading 10 External linksHow names are approved by the IAU editWhen images are first obtained of the surface of a planet or satellite a theme for naming features is chosen and a few important features are named usually by members of the appropriate IAU task group a commonly accepted planet naming group Later as higher resolution images and maps become available additional features are named at the request of investigators mapping or describing specific surfaces features or geologic formations Anyone may suggest that a specific name be considered by a task group If the members of the task group agree that the name is appropriate it can be retained for use when there is a request from a member of the scientific community for a name of a specific feature Names that pass review by a task group are submitted to the IAU Working Group for Planetary System Nomenclature WGPSN Once approved by the WGPSN names are considered official and can be used on maps and in publications They are also listed in the Gazetteer of Planetary Nomenclature 2 IAU rules and conventions editNames adopted by the IAU must follow various rules and conventions established and amended through the years by the Union These include 3 Nomenclature is a tool and the first consideration should be to make it simple clear and unambiguous In general official names will not be given to features whose longest dimensions are less than 100 meters although exceptions may be made for smaller features having exceptional scientific interest The number of names chosen for each body should be kept to a minimum Features should be named only when they have special scientific interest and when the naming of such features is useful to the scientific and cartographic communities at large Duplication of the same surface feature name on two or more bodies and of the same name for satellites and minor planets is discouraged Duplications may be allowed when names are especially appropriate and the chances for confusion are very small Individual names chosen for each body should be expressed in the language of origin Transliteration for various alphabets should be given but there will be no translation from one language to another Where possible the themes established in early solar system nomenclature should be used and expanded on Solar system nomenclature should be international in its choice of names Recommendations submitted to the IAU national committees will be considered but final selection of the names is the responsibility of the International Astronomical Union Where appropriate the WGPSN strongly supports an equitable selection of names from ethnic groups countries and gender on each map however a higher percentage of names from the country planning a landing is allowed on landing site maps No names having political military or modern religious significance may be used except for names of political figures prior to the 19th century Commemoration of persons on planetary bodies should not normally be a goal in itself but may be employed in special circumstances and is reserved for persons of high and enduring international standing Persons being so honored must have been deceased for at least three years When more than one spelling of a name is extant the spelling preferred by the person or used in an authoritative reference should be used Diacritical marks are a necessary part of a name and will be used Ring and ring gap nomenclature and names for newly discovered satellites are developed in joint deliberation between WGPSN and IAU Commission 20 Names will not be assigned to satellites until their orbital elements are reasonably well known or definite features have been identified on them Accessible and authoritative sources including Internet sources are required for adopted names Wikipedia is not sufficient as a source but may be useful for identifying appropriate sources In addition to these general rules each task group develops additional conventions as it formulates an interesting and meaningful nomenclature for individual planetary bodies Naming conventions editThis section does not cite any sources Please help improve this section by adding citations to reliable sources Unsourced material may be challenged and removed May 2018 Learn how and when to remove this template message Names for all planetary features include a descriptor term with the exception of two feature types For craters the descriptor term is implicit Some features named on Io and Triton do not carry a descriptor term because they are ephemeral In general the naming convention for a feature type remains the same regardless of its size Exceptions to this rule are valleys and craters on Mars and Venus naming conventions for these features differ according to size One feature classification regio was originally used on early maps of the Moon and Mercury drawn from telescopic observations to describe vague albedo features It is now used to delineate a broad geographic region Named features on bodies so small that coordinates have not yet been determined are identified on drawings of the body that are included in the IAU Transactions volume of the year when the names were adopted Satellite rings and gaps in the rings are named for scientists who have studied these features drawings that show these names are also included in the pertinent Transactions volume Names for atmospheric features are informal at present a formal system will be chosen in the future The boundaries of many large features such as terrae regiones planitiae and plana are not topographically or geomorphically distinct the coordinates of these features are identified from an arbitrarily chosen center point Boundaries and thus coordinates may be determined more accurately from geochemical and geophysical data obtained by future missions During active missions small surface features are often given informal names These may include landing sites spacecraft impact sites and small topographic features such as craters hills and rocks Such names will not be given official status by the IAU except as provided for by Rule 2 above As for the larger objects official names for any such small features would have to conform to established IAU rules and categories Descriptor terms feature types editFeature Pronunciation note 1 Description DesignationAlbedo feature ae l ˈ b iː d oʊ An area which shows a contrast in brightness or darkness albedo with adjacent areas This term is implicit ALArcus arcus ˈ ɑːr k e s Arc curved feature ARAstrum astra ˈ ae s t r e m ˈ ae s t r e Radial patterned features on Venus ASCatena catenae k e ˈ t iː n e k e ˈ t iː n iː A chain of craters e g Enki Catena CACavus cavi ˈ k eɪ v e s ˈ k eɪ v aɪ Hollows irregular steep sided depressions usually in arrays or clusters CBChaos ˈ k eɪ ɒ s A distinctive area of broken or jumbled terrain e g Iani Chaos CHChasma chasmata ˈ k ae z m e ˈ k ae z m e t e Deep elongated steep sided depression e g Eos Chasma CMCollis colles ˈ k ɒ l ɪ s ˈ k ɒ l iː z A small hill or knob COCorona coronae k ɒ ˈ r oʊ n e k ɒ ˈ r oʊ n iː An oval feature Used only on Venus and Miranda CRCrater craters ˈ k r eɪ t er A circular depression in most cases created by impact event This term is implicit AADorsum dorsa ˈ d ɔːr s em ˈ d ɔːr s e Ridge sometimes called a wrinkle ridge e g Dorsum Buckland DOEruptive center An active volcano on Io This term is implicit ERFacula faculae ˈ f ae k j ʊ l e ˈ f ae k j ʊ l iː Bright spot FAFarrum farra ˈ f aer e m ˈ f aer e Pancake like structure or a row of such structures Used only on Venus FRFlexus flexus ˈ f l ɛ k s e s Very low curvilinear ridge with a scalloped pattern FEFluctus fluctus ˈ f l ʌ k t e s f l ʌ k ˈ t uː s Terrain covered by outflow of liquid Used on Venus Io Titan and Mars FLFlumen flumina ˈ f l uː m ɪ n ˈ f l uː m ɪ n e Channel on Titan that might carry liquid FMFossa fossae ˈ f ɒ s e ˈ f ɒ s iː Long narrow shallow depression FOFretum freta ˈ f r iː t em ˈ f r iː t e Strait of liquid connecting two larger areas of liquid Used only on Titan FTInsula insulae ˈ ɪ n sj uː l e ˈ ɪ n sj uː l iː Island islands an isolated land area or group of such areas surrounded by or nearly surrounded by a liquid area sea or lake Used only on Titan INLabes labes ˈ l eɪ b ɪ s ˈ l eɪ b iː z Landslide debris Used only on Mars and 1 Ceres LALabyrinthus labyrinthi l ae b ɪ ˈ r ɪ n 8 e s l ae b ɪ ˈ r ɪ n 8 aɪ Complex of intersecting valleys or ridges LBLacuna lacunae l e ˈ k juː n e l e ˈ k juː n iː Irregularly shaped depression having the appearance of a dry lake bed Used only on Titan LULacus lacus ˈ l eɪ k e s A lake or small plain on Moon and Mars on Titan a lake of dark material thought to be liquid hydrocarbons or a small dark plain with discrete sharp boundaries LCLanding site name Lunar features at or near Apollo landing sites LFLarge ringed feature Cryptic ringed features LGLenticula lenticulae l ɛ n ˈ t ɪ k j ʊ l e l ɛ n ˈ t ɪ k j ʊ l iː Small dark spots on Europa LELinea lineae ˈ l ɪ n iː e ˈ l ɪ n iː iː Dark or bright elongate marking may be curved or straight LILingula lingulae ˈ l ɪ ŋ ɡ j ʊ l e ˈ l ɪ ŋ ɡ j ʊ l iː Extension of plateau having rounded lobate or tongue like boundaries LNLobus Lobes of contact binaries Currently used only on Arrokoth LOMacula maculae ˈ m ae k j ʊ l e ˈ m ae k j ʊ l iː Dark spot may be irregular MAMare maria ˈ m ɑːr iː eɪ ˈ m ɑːr i e A sea on the Moon a low albedo relatively smooth plain generally of large extent on Mars dark albedo area e g Mare Erythraeum on Titan large expanses of dark materials thought to be liquid hydrocarbons e g Ligeia Mare MEMensa mensae ˈ m ɛ n s e ˈ m ɛ n s iː A flat topped prominence with cliff like edges i e a mesa MNMons montes ˈ m ɒ n z ˈ m ɒ n t iː z Mons refers to a mountain Montes refers to a mountain range MOOceanus oʊ ˈ s iː e n e s Very large dark area The only feature with this designation is Oceanus Procellarum OCPalus paludes ˈ p eɪ l e s p e ˈ lj uː d iː z Swamp small plain Used on the Moon and Mars PAPatera paterae ˈ p ae t er e ˈ p ae t er iː Irregular crater or a complex one with scalloped edges e g Ah Peku Patera Usually refers to the dish shaped depression atop a volcano PEPlanitia planitiae p l e ˈ n ɪ ʃ e p l e ˈ n ɪ ʃ iː Low plain e g Amazonis Planitia PLPlanum plana ˈ p l eɪ n e m ˈ p l eɪ n e A plateau or high plain e g Planum Boreum PMPlume plumes ˈ p l uː m A cryovolcanic feature on Triton This term is currently unused PUPromontorium promontoria p r ɒ m e n ˈ t ɔːr i e m p r ɒ m e n ˈ t ɔːr i e Cape headland Used only on the Moon PRRegio regiones ˈ r iː dʒ i oʊ r ɛ dʒ i ˈ oʊ n iː z Large area marked by reflectivity or color distinctions from adjacent areas or a broad geographic region REReticulum reticula r ɪ ˈ t ɪ k j ʊ l e m r ɪ ˈ t ɪ k j ʊ l e reticular netlike pattern on Venus RTRima rimae ˈ r aɪ m e ˈ r aɪ m iː Fissure Used only on the Moon and 21 Lutetia RIRupes rupes ˈ r uː p ɪ s ˈ r uː p iː z Scarp RUSaxum saxa ˈ s ae k s e m ˈ s ae k s e Boulder or rock SASatellite feature A feature that shares the name of an associated feature for example Hertzsprung D SFScopulus scopuli ˈ s k ɒ p j ʊ l e ˈ s k ɒ p j ʊ l aɪ Lobate or irregular scarp SCSerpens serpentes ˈ s ɜːr p e n z s er ˈ p ɛ n t iː z Sinuous feature with segments of positive and negative relief along its length SESinus sinus ˈ s aɪ n e s Bay small plain on Moon or Mars e g Sinus Meridiani On Titan bay within bodies of liquid SISulcus sulci ˈ s ʌ l k e s ˈ s ʌ l s aɪ Subparallel furrows and ridges SUTerra terrae ˈ t ɛr e ˈ t ɛr iː Extensive land mass e g Arabia Terra Aphrodite Terra TATessera tesserae ˈ t ɛ s er e ˈ t ɛ s er iː An area of tile like polygonal terrain This term is used only on Venus TETholus tholi ˈ 8 oʊ l e s ˈ 8 oʊ l aɪ Small domical mountain or hill e g Hecates Tholus THUndae undae ˈ ʌ n d iː A field of dunes Used on Venus Mars and Titan UNVallis valles ˈ v ae l ɪ s ˈ v ae l iː z A valley e g Valles Marineris VAVastitas vastitates ˈ v ae s t ɪ t e s v ae s t ɪ ˈ t eɪ t iː z An extensive plain The only feature with this designation is Vastitas Borealis VSVirga virgae ˈ v ɜːr ɡ e ˈ v ɜːr dʒ iː A streak or stripe of color This term is currently used only on Titan VICategories for naming features on planets and satellites editMercury edit nbsp Examples of Mercurian nomenclature from the Kuiper quadrangle Feature type Current list Naming conventionCatenae list 1 Radio telescope facilitiesCraters list 2 Famous deceased artists musicians painters authorsDorsa list 3 Astronomers who made detailed studies of the planetFacula list 4 The word snake in various languagesFossae list 5 Significant works of architectureMontes list 6 Words for hot in various languages Only one mountain range is currently named Caloris Montes from Latin word for heat Planitiae list 7 Names for Mercury either planet or god in various languages Two exceptions exist Rupes list 8 Ships of discovery or scientific expeditionsValles list 9 Abandoned cities towns or settlements of antiquityVenus edit All but three features on Venus are named after female personages goddesses and historical or mythological women These three exceptions were named before the convention was adopted being respectively Alpha Regio Beta Regio and Maxwell Montes which is named after James Clerk Maxwell Feature type Current list Naming conventionAstra none 10 Goddesses miscellaneousChasmata list 11 Goddesses of hunt moon goddessesColles list 12 Sea goddessesCoronae list 13 Fertility and earth goddessesCraters list 14 Over 20 km famous women under 20 km common female first namesDorsa list 15 Sky goddessesFarra list 16 Water goddessesFluctus list 17 Goddesses miscellaneousFossae list 18 Goddesses of warLabyrinthi list 19 Goddesses miscellaneousLineae list 20 Goddesses of warMontes list 21 Goddesses miscellaneous also one radar scientist Paterae list 22 Famous womenPlanitiae list 23 Mythological heroinesPlana list 24 Goddesses of prosperityRegiones list 25 Giantesses and Titanesses also two Greek alphanumeric Rupes list 26 Goddesses of hearth and homeTerrae list 27 Goddesses of loveTesserae list 28 Goddesses of fate and fortuneTholi list 29 Goddesses miscellaneousUndae list 30 Desert goddessesValles list 31 Word for planet Venus in various world languages 400 km and longer river goddesses less than 400 km in length The Moon edit See also Selenography List of features on the Moon List of craters on the Moon List of maria on the Moon List of mountains on the Moon and List of valleys on the Moon Feature type Naming conventionCraters Craters are generally named after deceased scientists scholars artists and explorers who have made outstanding or fundamental contributions to their field Additionally craters in or around Mare Moscoviense are named after deceased Russian cosmonauts and craters in and around Apollo crater are named after deceased American astronauts see Space accidents and incidents This convention may be extended if other space faring countries suffer fatalities in spaceflight Lacus Maria Paludes Sinus These features are assigned names which are Latin terms describing weather and other abstract concepts Montes Montes are named after terrestrial mountain ranges or nearby craters Rupes Rupes are named after nearby mountain ranges see above Valles Valles are named after nearby features Others Features that don t fall into any of the above categories are named after nearby craters Mars and martian satellites edit Mars edit nbsp Early map of Mars by Giovanni Schiaparelli which depicts classical albedo featuresFeature type Naming conventionLarge craters Deceased scientists who have contributed to the study of Mars writers and others who have contributed to the lore of MarsSmall craters Villages of the world with a population of less than 100 000 Large valles Name for Mars star in various languagesSmall valles Classical or modern names of riversOther features From nearest named albedo feature on Schiaparelli or Antoniadi maps See Classical albedo features on Mars for a list When space probes have landed on Mars individual small features such as rocks dunes and hollows have often been given informal names Many of these are frivolous features have been named after ice cream such as Cookies N Cream cartoon characters such as SpongeBob SquarePants and Patrick and 1970s music acts such as ABBA and the Bee Gees 4 Deimos edit See also Deimos moon Named geological features nbsp The two named craters on DeimosFeatures on Deimos are named after authors who wrote about Martian satellites There are currently two named features on Deimos Swift crater and Voltaire crater after Jonathan Swift and Voltaire who predicted the presence of Martian moons Phobos edit See also Phobos moon Named geological features All features on Phobos are named after scientists involved with the discovery dynamics or properties of the Martian satellites or people and places from Jonathan Swift s Gulliver s Travels Satellites of Jupiter edit Amalthea edit See also Amalthea moon Named geological features People and places associated with the Amalthea myth Thebe edit Features on Thebe are named after people and places associated with the Thebe myth There is only one named feature on Thebe Zethus Crater Io edit See also List of geological features on Io List of mountains on Io and List of paterae on Io Feature type Naming conventionActive eruptive centers Active volcanoes on Io are named after fire sun or thunder gods or heroes Catenae Crater chains are named after Sun gods Fluctus Names of fluctus are derived from a nearby named feature fire sun thunder or volcano gods goddesses and heroes or mythical blacksmiths Mensae Montes Plana Regiones and Tholi These features can be named after places associated with Io mythology derived from nearby named features or places from Dante s InfernoPaterae Paterae on Io are named after fire sun thunder or volcano gods heroes or goddesses or mythical blacksmiths Valles Names of valleys are derived from nearby named features Europa edit See also List of geological features on Europa List of craters on Europa and List of lineae on Europa Feature type Naming conventionChaos Places associated with Celtic mythsCraters Celtic gods and heroesFlexus Places associated with the Europa mythLarge ringed features Celtic stone circlesLenticulae Celtic gods and heroesLineae People associated with the Europa mythMaculae Places associated with the Europa mythRegiones Places associated with Celtic mythsGanymede edit See also List of geological features on Ganymede Feature type Naming conventionCatenae craters Gods and heroes of ancient Middle Eastern civilizationsFaculae Places associated with Egyptian mythsFossae Gods or principals of ancient Fertile Crescent peoplePaterae Paterae on Ganymede are named after wadis in the Middle East Regiones Astronomers who discovered Jovian satellitesSulci Places associated with myths of ancient peopleCallisto edit See also List of geological features on Callisto and List of craters on Callisto Feature type Naming conventionLarge ringed features Homes of the gods and of heroesCraters Heroes and heroines from northern mythsCatenae Mythological places in high latitudesSatellites of Saturn edit Janus edit People from myth of Castor and Pollux twins Epimetheus edit People from myth of Castor and Pollux twins Mimas edit See also List of geological features on Mimas People and places from Malory s Le Morte d Arthur legends Baines translation Enceladus edit See also List of geological features on Enceladus People and places from Burton s Arabian Nights Tethys edit See also List of geological features on Tethys People and places from Homer s Odyssey Dione edit See also List of geological features on Dione Locations from Roman mythology or people and places from Virgil s Aeneid Rhea edit See also List of geological features on Rhea People and places from creation myths Titan edit See also List of geological features on Titan Feature type Naming conventionAlbedo features terrae Sacred or enchanted places paradise or celestial realms from legends myths stories and poems of cultures from around the worldColles Names of characters from Middle earth the fictional setting in fantasy novels by English author J R R Tolkien 1892 1973 Craters and ringed features Gods and goddesses of wisdomFacula and faculae Facula Names of islands on Earth that are not politically independent Faculae Names of archipelagosFluctus Gods and goddesses of beautyFlumina Names of mythical or imaginary riversFreta Names of characters from the Foundation series of science fiction novels by American author Isaac Asimov 1920 1992 Insulae Names of islands from legends and mythsLacus and lacunae Lakes on Earth preferably with a shape similar to the lacus or lacuna on TitanMare and maria Sea creatures from myth and literatureMontes Names of mountains and peaks from Middle earth the fictional setting in fantasy novels by English author J R R Tolkien 1892 1973 Planitiae and labyrinthi Names of planets from the Dune series of science fiction novels by American author Frank Herbert 1920 1986 Sinus Names of terrestrial bays coves fjords or other inletsUndae Gods and goddesses of windVirgae Gods and goddesses of rainHyperion edit See also List of geological features on Hyperion Sun and Moon deities Iapetus edit See also List of geological features on Iapetus People and places from Sayers translation of Chanson de Roland the only exception is Cassini Regio which is named after its discoverer Giovanni Cassini Phoebe edit nbsp Examples of crater nomenclature on PhoebeFeature type Naming conventionCraters Craters of Phoebe are named after people associated with Phoebe or people from Argonautica by Apollonius Rhodius or Gaius Valerius Flaccus Other Non crater features on Phoebe are named after places from Argonautica Satellites of Uranus edit Satellites of Uranus are named for characters from the works of William Shakespeare Puck edit See also List of geological features on Puck Mischievous Pucklike spirits class Miranda edit See also List of geological features on Miranda Characters places from Shakespeare s plays Ariel edit See also List of geological features on Ariel Light spirits individual and class Umbriel edit See also List of craters on Umbriel Dark spirits individual Titania edit See also List of geological features on Titania Female Shakespearean characters places Oberon edit See also List of geological features on Oberon Shakespearean tragic heroes and places Small satellites edit There are currently no named features on Uranian small satellites however the naming convention is heroines from plays by Shakespeare and Pope Satellites of Neptune edit Proteus edit See also List of geological features on Proteus Features on Proteus are to be named after water related spirits gods or goddesses who are neither Greek nor Roman The only named feature on Proteus is crater Pharos Triton edit See also List of geological features on Triton Geological features on Triton should be assigned aquatic names excluding those which are Roman and Greek in origin Possible themes for individual descriptor terms include worldwide aquatic spirits famous terrestrial fountains or fountain locations terrestrial aquatic features famous terrestrial geysers or geyser locations and terrestrial islands Nereid edit There are currently no named features on Nereid When features are discovered they are to be named after individual nereids Small satellites edit Features on other satellites of Neptune once discovered should be named after gods and goddesses associated with Neptune Poseidon mythology or generic mythological aquatic beings Pluto and satellites edit nbsp Informally named geographic features on PlutoIn February 2017 the IAU approved the following themes for surface features on Pluto and its satellites 5 Pluto edit Main articles Geography of Pluto and List of geological features on Pluto Gods goddesses and other beings associated with the Underworld from mythology folklore and literature Names for the Underworld and for Underworld locales from mythology folklore and literature Heroes and other explorers of the Underworld Scientists and engineers associated with Pluto and the Kuiper Belt Pioneering space missions and spacecraft Historic pioneers who crossed new horizons in the exploration of the Earth sea and sky Charon edit Main articles Geography of Charon and List of geological features on Charon Destinations and milestones of fictional space and other exploration Fictional and mythological vessels of space and other exploration Fictional and mythological voyagers travellers and explorers Authors and artists associated with space exploration especially Pluto and the Kuiper Belt Nix edit Deities of the night Hydra edit Legendary serpents and dragons Kerberos edit Dogs from literature mythology and history Styx edit River gods Asteroids edit 1 Ceres edit See also List of geological features on Ceres Feature type Naming conventionCraters Agricultural deitiesother Agricultural festivals4 Vesta edit See also List of geological features on Vesta Feature type Naming conventionCraters Historical and mythological women of Ancient Rome in one case Angioletta a modern day female scientist who lived in Rome other Festivals of Ancient Rome243 Ida edit See also List of geological features on 243 Ida and Dactyl Feature type Naming conventionCraters Caverns and grottos of the worldDorsa Galileo project participantsRegiones Discoverer of Ida and places associated with the discoverer 243 Ida I Dactyl edit Feature type Naming conventionCraters Idaean dactyls951 Gaspra edit See also List of geological features on 951 Gaspra Feature type Naming conventionCraters Spas of the worldRegiones Discoverer of Gaspra and Galileo project participants253 Mathilde edit See also List of craters on 253 Mathilde Feature type Naming conventionCraters Coal fields and basins of the world433 Eros edit See also List of geological features on 433 Eros Feature type Naming conventionCraters Mythological literary and historical names of loversRegiones Discoverers of ErosDorsa Scientists who have contributed to the exploration and study of Eros25143 Itokawa edit See also List of geological features on 25143 ItokawaSee also editAstronomical naming conventions Lists of geological features of the Solar System List of adjectivals and demonyms of astronomical bodies Naming of moons Selenography Toponymy the scientific study of place names toponyms their origins meanings use and typology Notes edit Listed pronunciations are conventional or follow the traditional English pronunciation of Latin words However some speakers use different often variable pronunciations that are closer to the Latin or Greek References editCitations edit History of Planetary Nomenclature United States Geological Survey May 17 2008 How Names Are Approved Gazetteer of Planetary Nomenclature United States Geological Survey International Astronomical Union Retrieved May 6 2021 Planetary Names IAU Rules and Conventions United States Geological Survey International Astronomical Union Retrieved September 18 2022 Chong Jia Rui October 9 2005 Map of Mars fills up with strange names Pittsburgh Post Gazette Retrieved April 18 2008 Official Naming of Surface Features on Pluto and its Satellites First Step Approved International Astronomical Union International Astronomical Union February 23 2017 Retrieved March 14 2017 Sources edit nbsp This article incorporates public domain material from Gazetteer of Planetary Nomenclature United States Geological Survey Retrieved September 18 2022 Whitaker E A 2003 Mapping and Naming the Moon A History of Lunar Cartography and Nomenclature ISBN 9780521544146 Further reading editRonald Greeley amp Raymond M Batson 1990 Planetary Mapping Cambridge University Press ISBN 0 521 03373 X External links editGazetteer of Planetary Nomenclature IAU Working Group for Planetary System Nomenclature WGPSN Planetary Names How do we come up with them Planetary Society weblog article by Rosaly Lopes IAU WGPSN member Members of the WGPSN Planetary Maps Visualization and Nomenclature Cartographica 41 2 2006 Development of a Local Toponym System at the Mars Desert Research Station Cartographica 42 2 2007 APTN National News interviews Planetary Cartographer John Koulouris Esq on I A U officially adopted Planetary Surface Feature Nomenclature attributed to Aboriginal Peoples Cultures People and Places Planetary Atlas of Venus in the Hellenic Greek and English Languages with I A U adopted surface feature nomenclature as of 1984 created by John A Koulouris Esq Retrieved from https en wikipedia org w index php title Planetary nomenclature amp oldid 1196557290, wikipedia, wiki, book, books, library,

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