Home›Asteroids›477865 2011 HC21477865 2011 HC21Main-belt minor planetDesignation(477865) 2011 HC21ClassMain-beltSemi-major axis2.541021 AUEccentricity0.1536265Inclination3.88441°Absolute magnitude (H)17.62Perihelion2.151 AUAphelion2.931 AU