Home›Asteroids›257138 2008 HM257138 2008 HMMain-belt minor planetDesignation(257138) 2008 HMClassMain-beltSemi-major axis3.0336089 AUEccentricity0.0404007Inclination1.63454°Absolute magnitude (H)16.8Perihelion2.911 AUAphelion3.156 AU