According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Paeonia measures between 18.63 and 23.092 kilometers in diameter and its surface has an albedo between 0.048 and 0.09.
According to NASA's Wide-field Infrared Survey Explorer (NEOWISE mission), the size of Paeonia is between 18.63 and 23.092 kilometers in diameter, with a surface albedo that falls within the range of 0.048 to 0.09.