(455502) 2003 UZ413
Minor planets
(455502) 2003 UZ₄₁₃ is a trans-Neptunian object with an absolute magnitude of 4.38. It is in a 2:3 orbital resonance with Neptune, thus it is classified as a plutino. There are indications it may be dense enough to be a dwarf planet. It was given... Wikipedia
Mass: ≈3×1020 kg
Discoverers: Michael E. Brown, Chad Trujillo, and David L. Rabinowitz
Discovered: October 21, 2003