dem·o·nym /ˈde-mə-ˌnim/ n : [from Greek δῆμος (“people”) + ὄνυμα (“name”)] a name for a native or inhabitant of a given area
Many of the planets and other celestial bodies of our solar system possess numerous names and appellations, particularly the more familiar they are to humankind. The earth and its moon are perhaps the best examples of this, each possessing no fewer than three names from which can be built adjectives and demonyms. Below are a selection of these terms as they relate to the story 2100 CE:
Terresphere
Earth
Alternate: Terra (terre-), Gaia (geo-), Tellus
Adjective: Earthly (personal), Terrestrial (astrological), Geographic (planetary)
Demonym: Earthling, Terrestrian
The Moon
Alternate: Luna (luna-), Selene (selen-), Cynthia
Adjective: Lunarian, Selenian (subsurface)
Demonym: Lunarian, Selenite
Areosphere
Mars
Alternate: Ares (areo-)
Adjective: Martian (planetary), Martial (astrological), Areal (personal)
Demonym: Martian, Areal
The Transmartial
Ceres
Adjective: Ceresian
Demonym: Cerelese
Pallas
Adjective: Pallasian
Demonym: Pallasian
Juno
Adjective: Junosian
Demonym: Junosian
8-Gitano (hee-tah-no)
Adjective: Gitanolese
Demonym: Gitanoan
Zeosphere
Jupiter
Alternate: Zeus (zeo-)
Adjective: Jovian, Galilean (Galilean moons)
Demonym: Jovian
Europa
Adjective: Europan
Demonym: Eurusian
Ganymede
Adjective: Ganymedean
Demonym: Ganymedean (sg.), Ganymese (pl.)
Callisto
Adjective: Callistolese
Demonym: Callistoan (sg.), Callistolese (pl.)
Cronosphere
Saturn
Alternate: Cronus (crono-)
Adjective: Saturnine
Demonym: Saturnian
Titan
Adjective: Titanian
Demonym: Titanian (sg.), Titanese (pl.)
Other
Venus (Cytherosphere)
Alternate: Cythera (cythereo-)
Adjective: Venusian, Cytherean
Demonym: Venusian, Cytherean
Uranus (Caeliosphere)
Alternate: Caelus (caelio-)
Adjective: Caelian
Demonym: Caelian

Part of 2100 CE.