385446 Manwë
Asteroid
385446 Manwë, or Manwë–Thorondor, is a binary resonant Kuiper belt object in a 4:7 mean-motion resonance with Neptune. It was discovered on 25 August 2003, by American astronomer Marc Buie at Cerro Tololo Observatory in northern Chile. Wikipedia
Discovered: August 25, 2003
Absolute magnitude (H): 6.57; 7.15 (combined)
Discovered by: M. W. Buie
Minor planet category: TNO; 4:7 resonance
Orbital period (sidereal): 288.82 yr (105,492 d)
Synodic rotation period: 11.8819±0.00005 h (Manwë); 309.3 d (Thorondor)