Home›Asteroids›10503 Johnmarks10503 JohnmarksMain-belt minor planetOpen encyclopedia entry →Designation(10503) JohnmarksClassMain-beltSemi-major axis2.2211568 AUEccentricity0.1143559Inclination4.71472°Absolute magnitude (H)14.27Perihelion1.967 AUAphelion2.475 AU