Europa
Europa (Jupiter II) is a moon of Jupiter, discovered by Galileo Galilei in 1610. It orbits Jupiter every 3.6 days and shines at about magnitude 5.3.
Smooth ice over a hidden ocean — the smallest and faintest of the four Galilean moons.
Other moons of Jupiter: Io, Ganymede, Callisto.
Open AstroPilot to see where Europa is next to Jupiter tonight and how easy it is with your telescope.