Eunomia family

The Eunomia family is a group of several hundred asteroids that share similar orbital and spectral properties. It is believed to be a result of the collision and breakdown of a larger parent body. The group is named after its largest and first-found member, 15 Eunomia.

Eunomia asteroids are S-type asteroids, so they are quite bright in color and their composition is likely a mixture of nickel-iron with silicates similar to 243 Ida or 951 Gaspra. A few C-type or other asteroids lie within the group, but they are most likely interlopers and not related to other Eunomia asteroids.

The Eunomia family is located between 3:1 and 8:3 resonances with Jupiter.

Orbital elements for the Eunomia family:


The minor planets
Vulcanoids | Main belt | Groups and families | Near-Earth objects | Jupiter Trojans
Centaurs | Trans-Neptunians | Damocloids | Comets | Kuiper belt | Oort cloud
(For other objects and regions, see: Binary asteroids, Asteroid moons and the Solar system)
(For a complete listing, see: List of asteroids. For pronunciation, see: Pronunciation of asteroid names.)

See also: Eunomia family, 15 Eunomia, 243 Ida, 951 Gaspra, Asteroid, Asteroid group, Asteroid moon, Astronomical unit, C-type asteroid