Home›Asteroids›6390 Hirabayashi6390 HirabayashiMain-belt minor planetOpen encyclopedia entry →Designation(6390) HirabayashiClassMain-beltSemi-major axis2.8840481 AUEccentricity0.1737582Inclination6.07171°Absolute magnitude (H)12.99Perihelion2.383 AUAphelion3.385 AU