21985 Sejna

Main-belt minor planet

Designation: (21985) Sejna
Class: Main-belt
Semi-major axis: 3.1056237 AU
Eccentricity: 0.1184745
Inclination: 0.73121°
Absolute magnitude (H): 14.45
Perihelion: 2.738 AU
Aphelion: 3.474 AU