20427 Hjalmar

Main-belt minor planet

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Designation: (20427) Hjalmar
Class: Main-belt
Semi-major axis: 3.1369883 AU
Eccentricity: 0.101796
Inclination: 24.02289°
Absolute magnitude (H): 12.61
Perihelion: 2.818 AU
Aphelion: 3.456 AU