Home›Asteroids›257720 1999 XF217257720 1999 XF217Main-belt minor planetDesignation(257720) 1999 XF217ClassMain-beltSemi-major axis3.09873 AUEccentricity0.1536505Inclination1.92495°Absolute magnitude (H)16.95Perihelion2.623 AUAphelion3.575 AU