Jupiter
Pluto
Diameterkm
139,820
2,377
Mass (Earth = 1)x
317.80
0.00
Surface Gravitym/s²
24.79
0.62
Mean Temperature°C
-110
-230
Distance from SunAU
5.20
39.48
Orbital Perioddays
4,331
90,560
Day Lengthhours
9.93
153.29
Known Moons
95
5
Axial Tilt°
3.13
122.53
Orbital Velocitykm/s
13.07
4.67
Quick Facts
Jupiter
- -Jupiter's Great Red Spot is a storm large enough to swallow Earth and has been raging for at least 350 years.
- -Jupiter has the shortest day of any planet -- it completes one rotation in just under 10 hours.
- -Jupiter's magnetic field is about 20,000 times stronger than Earth's.
- -Europa, one of Jupiter's moons, likely has more water in its subsurface ocean than all of Earth's oceans combined.
Pluto
- -Pluto was reclassified from planet to dwarf planet in 2006 by the International Astronomical Union.
- -Pluto's largest moon Charon is so large (half Pluto's diameter) that they orbit a point between them, forming a binary system.
- -Pluto's famous heart-shaped feature, Sputnik Planitia, is a vast plain of nitrogen ice over 1,000 km across.
- -One year on Pluto takes 248 Earth years -- it hasn't completed a single orbit since its discovery in 1930.