europa

Europa is another one of the Galilean moons orbiting Jupiter. It's thought to have a similar composition to Earth in the sense that it's got an iron core, rocky mantel and water on the surface (although frozen due to distance from the sun) enough to cover the entire moon.

Orbital period: 3.55 earth days
Orbital Speed: 13.74 km/s
Inclination: 0.47°
Mean Radius: 1,560.8 km
Circumference: 9806.8 km
Mass: 4.7998×10²² kg
Surface Gravity: 1.315 m/s²
Apparent Magnitude: 5.29