The Science Shtick
 
Our Solar System: Janus
Mass 2.01*10²¹ g
Average Density 0.67 g/cm³
Radius 88.8*105 cm
Period of Rotation .6945 d
Orbital Radius 151.472*108 cm
Orbital Period .6945 d
Discovered 1966 by Audouin Dollfus

Satellite of Saturn