Asteroid (10) Hygiea
Orbital characteristics
| Epoch 1-Jul-2021 (2459396.5 JD) | |
| Apoapsis | 3.4938 AU |
| 5.2267×108 km | |
| Periapsis | 2.7911 AU |
| 4.1754×108 km | |
| Semi-major axis | 3.1424 AU |
| 4.701×108 km | |
| Eccentricity | 0.1118168 |
| Inclination | 3.8311 ° |
| Longitude of asc. node | 283.19 ° |
| Argument of periapsis | 312.45 ° |
| Orbital period | 2034.70 days |
| 5.571 years | |
| Avg. orbital speed | 16.75 km/s |
Physical characteristics
| Mean diameter | 407.12 km |
| Mass | 1.049×1020 kg |
| Avg. density | 2.969 g/cm3 |
| Equatorial surface gravity | 0.169 m/s2 |
| 0.017 g | |
| Escape velocity | 0.262 km/s |
| Rotation period (sidereal) | 27.659 hours |
| Albedo | 0.072 |
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Links
Shape model data sources
- Ďurech et al., Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes. Icarus 214, 652, 2011 link
- Hanuš et al., Volumes and bulk densities of forty asteroids from ADAM shape modeling. Astronomy & Astrophysics 601, id.A114, 2017 link
- P. Vernazza et al., The impact crater at the origin of the Julia family detected with VLT/SPHERE? Astronomy & Astrophysics 618, A154 (2018) link
Downloads
Models
Models are given in Stanford Triangle Format (PLY) and Alias Waveform Format (OBJ) - you can use MeshLab or any other tool to convert them to other formats.
- Hygiea (Ďurech, Model 1) (PLY 38 KB) (OBJ 64 KB)
- Hygiea (Ďurech, Model 2) (PLY 38 KB) (OBJ 65 KB)
- Hygiea (Hanuš, Model 1) (PLY 16 KB) (OBJ 35 KB)
- Hygiea (Hanuš, Model 2) (PLY 16 KB) (OBJ 35 KB)
- Hygiea (Vernazza 2018) (PLY 60 KB) (OBJ 92 KB)
Please note that the models are in planetocentric coordinate system, with Z axis passing through north pole. Actual rotational axis may differ from planetocentric poles, especially for small irregular bodies.
Surface Textures
This object does not have textures yet and is being displayed as a solid gray shape.