624 Hektor is the largest of the Jupiter Trojans, 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.
|diameter||150 × 300 km|
|rotational period||6.93 hours|
|semimajor axis||5.172 AU|