Home›Asteroids›1866 Sisyphus1866 SisyphusNear-Earth minor planetOpen encyclopedia entry →Designation(1866) SisyphusClassNear-EarthSemi-major axis1.8933687 AUEccentricity0.5381206Inclination41.2063°Absolute magnitude (H)12.47Perihelion0.875 AUAphelion2.912 AU