Home›Asteroids›871991 2017 XM31871991 2017 XM31Main-belt minor planetDesignation(871991) 2017 XM31ClassMain-beltSemi-major axis3.1591004 AUEccentricity0.208393Inclination29.23653°Absolute magnitude (H)16.65Perihelion2.501 AUAphelion3.817 AU