257152 2008 HD21

Main-belt minor planet

Designation: (257152) 2008 HD21
Class: Main-belt
Semi-major axis: 3.0591899 AU
Eccentricity: 0.0929723
Inclination: 6.14444°
Absolute magnitude (H): 16.35
Perihelion: 2.775 AU
Aphelion: 3.344 AU