The Science Shtick
 
Our Solar System: Ganymede
Mass 1.48*1025 g
Average Density 1.94 g/cm³
Equatorial Radius 2.631*106 cm
Period of Rotation 7.154553 d
Orbital Radius 10.70*1010 cm
Orbital Period 7.154553 d
Discovered 1610 by Simon Marius & Galileo Galilei

Satellite of Jupiter