Asteroid (1251) Hedera

Orbital characteristics

Epoch 17-Dec-2020 (2459200.5 JD)
Apoapsis	3.1464 AU
Apoapsis	4.707×10⁸ km
Periapsis	2.2907 AU
Periapsis	3.4268×10⁸ km
Semi-major axis	2.7186 AU
Semi-major axis	4.0669×10⁸ km
Eccentricity	0.1573865
Inclination	6.0519 °
Longitude of asc. node	140.61 °
Argument of periapsis	216.93 °
Orbital period	1637.21 days
Orbital period	4.482 years
Avg. orbital speed	17.95 km/s

Physical characteristics

Mean diameter	13.239 km
Rotation period (sidereal)	19.902 hours
Albedo	0.636

Models:

Ďurech 2016 Model 1 Model 2

Ďurech 2017 Model 1 Model 2

Textures: Solid Gray Apparent Color Grid

(6) Hebe

(624) Hektor

Shape model data sources

Ďurech et al., Asteroid models from the Lowell Photometric Database. Astronomy and Astrophysics, 2016 link
Ďurech et al., Shape models of asteroids based on lightcurve observations with BlueEye600 robotic observatory. A&A, submitted, 2017 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.

Hedera (Ďurech 2016, Model 1) (PLY 39 KB) (OBJ 61 KB)
Hedera (Ďurech 2016, Model 2) (PLY 39 KB) (OBJ 62 KB)
Hedera (Ďurech 2017, Model 1) (PLY 38 KB) (OBJ 87 KB)
Hedera (Ďurech 2017, Model 2) (PLY 39 KB) (OBJ 87 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.

Last Modified: 03 Jul 2021