1999 Hirayama

Main-belt minor planet

Designation: (1999) Hirayama
Class: Main-belt
Semi-major axis: 3.1114224 AU
Eccentricity: 0.1190917
Inclination: 12.53974°
Absolute magnitude (H): 11.1
Perihelion: 2.741 AU
Aphelion: 3.482 AU