Callisto
Callisto is one of the four Galilean moons of the planet Jupiter.
Callisto
Facts About Callisto:
- Callisto is the second largest moon of Jupiter and the third largest in the Solar System.
- It is the most distant of the Galilean moons from Jupiter.
- It is almost the same size as the planet Mercury, with 99% of Mercury's diameter, but Callisto is only about 30% as massive.
Classification: Moon (orbiting Jupiter)
Names: Callisto, Jupiter IV
Discovered: 1610 by Galileo Galilei
Magnitude: 5.6500 (app)
Diameter: 4820.6 km
Mass: 1.075938e+23 kg
Semi-major axis: 1,882,700 km
Orbital Period: 16.6890184 Earth days
Orbital Speed: 8.2040 km/s
Eccentricity: 0.00740000
Albedo: 0.2200
Volume: 59000000000 km3
Density: 1.8344 g/cm3
Surface Area: 73000000 km2
Surface Gravity: 0.1260 g
Escape Velocity: 2.4400 km/s
Adjective: Callistoan