Home›Asteroids›129585 1997 SM21129585 1997 SM21Main-belt minor planetDesignation(129585) 1997 SM21ClassMain-beltSemi-major axis2.2908965 AUEccentricity0.0868986Inclination4.38806°Absolute magnitude (H)17.48Perihelion2.092 AUAphelion2.490 AU