(45) Eugenia I Petit-Prince is an asteroid moon that orbits the larger asteroid 45 Eugenia. It was discovered in 1998 by astronomers at the Canada-France-Hawaii Telescope on Mauna Kea, Hawaii. Initially, it received the provisional designation S/1998 (45) 1.

Petit-Prince was named in 2003 after Antoine de Saint-Exupéry's character The Little Prince, who was in turn based on the Prince Imperial, son of Empress Eugenia. It is an extremely appropriate name, since The Little Prince in the novel lives on an asteroid. In the book, the little prince's asteroid has no name, but it has a unique identifier: B612.

Petit-Prince is 13 km in diameter, compared to 45 Eugenia's 214 km. It takes five days to complete an orbit around Eugenia.

Petit-Prince was the first asteroidal moon to be discovered by a ground-based telescope. Previously, the only known moon of an asteroid was Dactyl, discovered by the Galileo space probe around 243 Ida.

See also


The minor planets
Vulcanoids | Near-Earth asteroids | Main belt | Jupiter Trojans | Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud)
For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system
For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.
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