(15) Eunomia
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Asteroid (15) Eunomia 
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Eunomia family |
| Major semi-axis | 2.6435 AU |
| eccentricity | 0.1873 |
| Perihelion - aphelion | 2.1485 AU - 3.1385 AU |
| Inclination of the orbit plane | 11.7381 ° |
| Length of the ascending node | 293.1821 ° |
| Argument of the periapsis | 97.5420 ° |
| Time of passage of the perihelion | 3rd December 2015 |
| Sidereal period | 4.30 a |
| Mean orbital velocity | 18 km / s |
| Physical Properties | |
| Medium diameter | 231.689 ± 2.234 km |
| Dimensions | approx. 10 19 kg |
| Albedo | 0.248 ± 0.042 |
| Rotation period | 6.083 h |
| Absolute brightness | 5.2 likes |
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Spectral class (according to Tholen) |
S. |
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Spectral class (according to SMASSII) |
S. |
| history | |
| Explorer | Annibale de Gasparis |
| Date of discovery | July 29, 1851 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(15) Eunomia is a main belt asteroid discovered by Annibale de Gasparis on July 29, 1851 in the constellation of Sagittarius .
Eunomia was after Eunomia , one of the Horen daughters of that Zeus and Themis from the Greek mythology named.
With a mean diameter of around 230 kilometers, Eunomia is one of the largest asteroids in the main belt. The asteroid has a geometric albedo of 0.25. It rotates around its own axis in about 6.083 hours.