Asteroid (257) Silesia

Orbital characteristics

Epoch 1-Jul-2021 (2459396.5 JD)
Apoapsis3.4658 AU
5.1847×108 km
Periapsis2.7693 AU
4.1429×108 km
Semi-major axis3.1175 AU
4.6638×108 km
Eccentricity 0.1116978
Inclination3.6133 °
Longitude of asc. node34.058 °
Argument of periapsis31.599 °
Orbital period2010.57 days
5.505 years
Avg. orbital speed16.82 km/s

Physical characteristics

Mean diameter72.660 km
Rotation period (sidereal)15.710 hours



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.

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.

Last Modified: 18 Jul 2021