Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with a mass slightly less than one-thousandth of the Sun but is two and a half times the mass of all the other planets in our Solar System combined.
This app shows the positions of Jupiters four Galilean satellites for any date and time from January 1,1900,to December 31,2100.
It also can shows the position of Jupiters Great Red Spot for any date and time.