Home›Asteroids›279173 2009 ST257279173 2009 ST257Main-belt minor planetDesignation(279173) 2009 ST257ClassMain-beltSemi-major axis2.426974 AUEccentricity0.196647Inclination2.74841°Absolute magnitude (H)17.61Perihelion1.950 AUAphelion2.904 AU