624 Hektor is the largest of the Jupiter Trojans. It was discovered at the preceding (L4) Lagrangian point by the German astronomer August Kopff (1882–1960) in 1907.

 

Hektor is highly elongated and may actually be two objects in contact that are rotating around a common center of mass. With a visual magnitude that reaches +14.5, it is the brightest of the Trojans. It has one small 12-kilometer sized satellite, Skamandrios, discovered in 2006.

 

diameter	150 × 300 km
spectral class	D
rotational period	6.93 hours
semimajor axis	5.172 AU
perihelion	5.05 AU
aphelion	5.29 AU
eccentricity	0.02
inclination	18.2°