Distance From Sun
|
Perihelion
| 740,600,000 km (460,200,000 mi)
|
Mean
| 778,400,000 km (483,600,000 mi)
|
Aphelion
| 816,000,000 km (507,000,000 mi)
|
Distance From Earth
|
Shortest
| 628,760,000 km (390,700,000 mi)
|
Greatest
| 970,000,000 km (600,000,000 mi)
|
Size
|
Mass (earth=1)
| 317.8
|
Radius (earth=1)
| 11.2
|
Mean density (water=1)
| 1.3
|
|
Orbit/Rotation
|
Rotation period (about axis)
| 9.8 hours
|
Period of revolution about sun
| 11.86 years
|
Inclination of orbit (degrees)
| 1.30°
|
Eccentricity of orbit
| 0.05
|
Temperature
|
-125° to 17° C
|
(-193° to 63° F)
|
Number of Satellites
|
16
|
Atmosphere
|
Hydrogen, helium (also traces of methane, ammonia, carbon monoxide, ethane, acetylene, phosphine, and water vapor).
|
|