Home›Asteroids›189261 Hiroo189261 HirooMain-belt minor planetOpen encyclopedia entry →Designation(189261) HirooClassMain-beltSemi-major axis3.0918396 AUEccentricity0.3676793Inclination15.95669°Absolute magnitude (H)14.47Perihelion1.955 AUAphelion4.229 AU