(10) Hygiea Main-belt Asteroid
Discovered on 12 April 1849 by A. de Gasparis at Naples.
Where Hygiea is today
Seen from above the solar system on 2026-10-14: Hygiea is 3.16 au from the Sun and 3.72 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10 |
| Provisional designation | A849 GA |
| Orbit class | Main-belt Asteroid |
| Diameter | 407 km (#5 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0717 |
| Rotation period | 13.8 hours |
| Spectral type | C |
| Absolute magnitude (H) | 5.65 |
| Orbital period | 5.59 years |
| Semi-major axis | 3.15 au |
| Perihelion – aphelion | 2.81 – 3.49 au |
| Eccentricity | 0.107 |
| Inclination | 3.83° |
| Closest distance between its orbit and Earth's (MOID) | 1.81 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by A. de Gasparis
← (9) Metis · (11) Parthenope →