Planetary Fact Sheet – Metrics Units


   MERCURY   VENUS   EARTH   MOON   MARS   JUPITER   SATURN   URANUS   NEPTUNE   PLUTO 
Mass (1024kg) 0.330 4.87 5.97 0.073 0.642 1898 568 86.8 102 0.0131
Diameter (km) 4879 12,104 12,756 3475 6792 142,984 120,536 51,118 49,528 2390
Density (kg/m3) 5427 5243 5514 3340 3933 1326 687 1271 1638 1830
Gravity (m/s2) 3.7 8.9 9.8 1.6 3.7 23.1 9.0 8.7 11.0 0.6
Escape Velocity (km/s) 4.3 10.4 11.2 2.4 5.0 59.5 35.5 21.3 23.5 1.1
Rotation Period (hours) 1407.6 -5832.5 23.9 655.7 24.6 9.9 10.7 -17.2 16.1 -153.3
Length of Day (hours) 4222.6 2802.0 24.0 708.7 24.7 9.9 10.7 17.2 16.1 153.3
Distance from Sun (106 km) 57.9 108.2 149.6 0.384* 227.9 778.6 1433.5 2872.5 4495.1 5870.0
Perihelion (106 km) 46.0 107.5 147.1 0.363* 206.6 740.5 1352.6 2741.3 4444.5 4435.0
Aphelion (106 km) 69.8 108.9 152.1 0.406* 249.2 816.6 1514.5 3003.6 4545.7 7304.3
Orbital Period (days) 88.0 224.7 365.2 27.3 687.0 4331 10,747 30,589 59,800 90,588
Orbital Velocity (km/s) 47.4 35.0 29.8 1.0 24.1 13.1 9.7 6.8 5.4 4.7
Orbital Inclination (degrees) 7.0 3.4 0.0 5.1 1.9 1.3 2.5 0.8 1.8 17.2
Orbital Eccentricity 0.205 0.007 0.017 0.055 0.094 0.049 0.057 0.046 0.011 0.244
Axial Tilt (degrees) 0.01 177.4 23.4 6.7 25.2 3.1 26.7 97.8 28.3 122.5
Mean Temperature (C) 167 464 15 -20 -65 -110 -140 -195 -200 -225
Surface Pressure (bars) 0 92 1 0 0.01 Unknown* Unknown* Unknown* Unknown* 0
Number of Moons 0 0 1 0 2 67 62 27 14 5
Ring System? No No No No No Yes Yes Yes Yes No
Global Magnetic Field? Yes No Yes No No Yes Yes Yes Yes Unknown
   MERCURY   VENUS   EARTH   MOON   MARS   JUPITER   SATURN   URANUS   NEPTUNE   PLUTO 

* – See the
Fact Sheet Notes.



Planetary Fact Sheet in U.S. Units

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