Object | Jupiter | Saturn |
---|---|---|
Type | Gaseous planet | Gaseous planet |
Age | 4.5 billion years | 4.5 billion years |
Diameter | 139,820 km | 116,460 km |
Mean radius | 69,911 km | 58,232 km |
Mass | 1.89 × 1027 kg | 5.68 × 1026 kg |
Orbital period | 12 years | 29 years |
Rotation duration | 10 hours | 10 hours |
Surface temperature (average) |
112 K -161 °C -258 °F |
84 K -189 °C -308 °F |
Surface gravity | 24.79 m/s² | 10.44 m/s² |
Mean density | 1.36 g/cm3 | 0.68 g/cm3 |
Orbital distance | 760 million km | 1,427 million km |
Circumference | 439,264 km | 378,675 km |
Surface area | 6.14 × 1010 km2 | 42.7 × 109 km2 |
Volume | 1.43 × 1015 km3 | 8.27 × 1014 km3 |
Escape velocity | 59.5 km/s | 35.5 km/s |
Average orbital speed | 13.07 km/s | 9.68 km/s |
Aphelion | 816 million km | 1,514 million km |
Perihelion | 740 million km | 1,352 million km |
Semi major axis | 778 million km | 1,433 million km |
Inclination | 1.3° | 2.48° |
Satellites | 79 natural satellites 0 quasi-satellite 0 artificial satellite |
82 natural satellites 0 quasi-satellite 0 artificial satellite |
Surface pressure | 70 kPa | 140 kPa |
Atmosphere composition | 89% hydrogen, 10% helium, 0.3% methane, 0.026% ammonia |
96.3% hydrogen, 3.25% helium, 0.45% methane, 0.0125% ammonia, 0.0110% hydrogen deuteride |
Distance from the Milky Way center | 27,200 light years | 27,200 light years |