what is the surface temperature of callisto farenheit
Size: At 3,000 miles (4,800 km) in diameter, Castillo is roughly the same size as Mercury. It is the third largest moon in the entire solar system. It has the lowest density of the four Galilean moons. Temperature: The mean surface temperature of Callisto is -218.47 Fahrenheit.The Discovery of Callisto. Callisto is the fourth of Jupiterâs moons to be discovered by Galileo Galilei on Jan. 7, 1610.oyager 1 image of Jupiter's moon Callisto from a distance of 350,000 km. The large âbulls-eyeâ at the top is believed to be an impact basin formed early in Callisto's history. The bright center of the basin is about 600 km across and the outer ring is about 2,600 km across.