Home›Asteroids›871643 2017 SY256871643 2017 SY256Main-belt minor planetDesignation(871643) 2017 SY256ClassMain-beltSemi-major axis3.1887392 AUEccentricity0.111092Inclination1.669°Absolute magnitude (H)17.45Perihelion2.834 AUAphelion3.543 AU