Eunomia family (of asteroids)

The Eunomia family is a small family of S-type and C-type asteroids that orbit in the middle of the main asteroid belt at a mean distance from the Sun of 2.6 to 2.7 AU and a mean inclination of 12°. The prototype and largest member is 15 Eunomia, discovered in 1851 by Annibale de Gasparis (1819–92) in Naples.


Data for 15 Eunomia
diameter 272 km
spectral class S
semimajor axis 2.644 AU
perihelion 2.151 AU
aphelion 3.136 AU
eccentricity 0.186
inclination 11.75°
period 4.30 years